js模拟浏览器加载效果 pace.js 中文官方文档 pace

2017年2月20日12:11:25

官网URL：http://github.hubspot.com/pace/docs/welcome/

文档 http://github.hubspot.com/pace/

本人测试，是兼容手机的，所以放心使用

在你的页面上包含pace.js和你选择的主题css（尽可能早），你就完成了！

Pace将自动监视您的ajax请求，事件循环滞后，文档就绪状态和页面上的元素以决定进度。在ajax导航它会再次开始！

如果你使用AMD或Browserify，需要在pace.js和调用pace.start（）早在加载过程是可能的。

安装在Wordpress上

您可以通过安装Wordpress插件添加PACE到您的Wordpress网站。

实例

<head>
  <script src="/pace/pace.js"></script>
  <link href="/pace/themes/pace-theme-barber-shop.css" rel="stylesheet" />
</head>

配置

速度是完全自动的，没有配置是必要的开始。

如果你想做一些调整，这里是如何：

您可以在引入文件之前设置window.paceOptions：

paceOptions = {
  // Disable the 'elements' source
  elements: false,

  // Only show the progress on regular and ajax-y page navigation,
  // not every request
  restartOnRequestAfter: false
}

您还可以在脚本标记上放置选项：

<script data-pace-options='{ "ajax": false }' src='pace.js'></script>

如果您使用AMD或Browserify，您可以传递您的选项开始：

define(['pace'], function(pace){
  pace.start({
    document: false
  });
});

主题

Pace包括一大堆主题，让你开始。只需包括适当的css文件。向我们发送公关与您创建的任何有趣的主题。

http://github.hubspot.com/pace/docs/welcome/ 里面有主题模板注意

收集器

收集器是收集进度信息的代码位。 Pace包括四个默认收集器：

Ajax

监控页面上所有的Ajax请求
Elements

对于页面上的特定元素的存在性检查
Document

检查Document元素状态
Event Lag

检查事件循环滞后信号，表明正在执行javascript

它们可以通过相同名称的配置选项配置或禁用。

paceOptions = {
  ajax: false, // disabled
  document: false, // disabled
  eventLag: false, // disabled
  elements: {
    selectors: ['.my-page']
  }
};

将您自己的类添加到paceOptions.extraSources以添加更多源。每个源应该有一个.progress属性，或者一个.elements属性，它是带有.progress属性的对象的列表。 Pace将自动处理所有缩放，使进度更改对用户看起来流畅。

元素

正在呈现到屏幕的元素是我们决定页面被呈现的一种方式。如果要使用该信息源（根本不需要），请指定一个或多个选择器。您可以逗号分隔选择器以适当地处理错误状态，其中进度条应该消失，但是我们正在寻找的元素可能永远不会出现：

paceOptions = {
  elements: {
    selectors: ['.timeline,.timeline-error', '.user-profile,.profile-error']
  }
}

当每个选择器匹配什么时，Pace会考虑元素测试成功。对于此示例，如果存在.timeline或.timeline错误，并且存在.user-profile或.profile-error。

重新启动规则

大多数用户希望进度条在pushState事件发生时自动重新启动（通常意味着ajax导航正在发生）。您可以禁用此功能：

paceOptions = {
  restartOnPushState: false
}

您还可以对每个持续时间超过x ms的ajax请求重新启动步速。你想禁用这个，如果你使ajax请求用户不需要知道，像预缓存：

paceOptions = {
  restartOnRequestAfter: false
}

您可以随时通过调用Pace.restart（）手动触发重新启动，

有关所有选项的完整列表，请参阅源代码。

API

Pace公开了以下方法：

Pace.start:显示进度条并开始更新。如果不使用AMD或CommonJS，则自动调用。
Pace.restart: 如果进度条已隐藏，则显示进度条，并开始从头开始报告进度。在默认情况下调用pushState或replaceState时自动调用。
Pace.stop: 隐藏进度条并停止更新。
Pace.track: 显式跟踪一个或多个请求，请参阅下面的跟踪
Pace.ignore: 显式忽略一个或多个请求，请参阅下面的跟踪

Events事件

Pace触发以下事件：

start: 当pace初始化开始时，或作为重新启动的一部分
stop: 当pace手动停止时，或作为重新启动的一部分
restart: 当重新启动pace（手动，或通过新的AJAX请求）
done: 当pace完成时
hide: 当pace被隐藏时（可以晚于，基于ghostTime和minTime）

您可以使用on，off和once方法绑定到事件：

Pace.on(event, handler, [context]): 事件触发时的调用处理程序（可选择使用上下文）
Pace.off(event, [handler]): 取消绑定提供的事件和处理程序组合。
Pace.once(event, handler, [context]): 绑定处理程序到下一个（而且只有下一个）事件发生率

跟踪

默认情况下，Pace会显示任何ajax请求，它们作为正常或ajax-y页面加载的一部分开始，或者持续时间超过500ms。

您可以通过使用ajax为false禁用所有的ajax跟踪：

Pace.options = {
  ajax: false
}

您可以通过将restartOnRequestAfter设置为false来禁用ajax跟踪（页面导航除外）：

Pace.options = {
  restartOnRequestAfter: false
}

您可以通过在Pace.ignorecallback中触发对特定请求或请求手动禁用跟踪：

Pace.ignore(function(){
  $.ajax(...)
});

您可以通过在Pace.trackcallback内触发进度条来强制显示特定请求的进度条：

Pace.track(function(){
  $.ajax(...)
});

您也可以根据模式忽略网址：

Pace.options = {
  ajax: {
    ignoreURLs: ['some-substring', /some-regexp/]
  }
}

依赖

没有!

支持

Pace旨在支持IE8 +（标准模式），FF 3.5+，Chrome，Safari 4+，Opera 10.5+和所有现代移动浏览器。如果您遇到兼容性问题，或者可以提供支持其他功能的情况，请创建一个问题。

文件大小

pace.js是4kb缩小和gzipped。主题介于0.5和4kb之间。

问题

我们显然没有在每个网站上测试这个。如果您遇到问题，或找到自动检测可能更好的方法，请创建一个问题。如果你可以包括一个测试用例，那就更好了。

贡献

PRs 欢迎!

构建需要node.js.

npm install
grunt

您也可以运行grunt watch，让它在您进行更改时自动构建。

没有必要在PRs中包括编译的文件。

支持的一些其他主题，其实也就是一些css，直接引用就行了pace.css

主题css代码

Flash

.pace {
  -webkit-pointer-events: none;
  pointer-events: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  user-select: none;
}

.pace-inactive {
  display: none;
}

.pace .pace-progress {
  background: #29d;
  position: fixed;
  z-index: 2000;
  top: 0;
  right: 100%;
  width: 100%;
  height: 2px;
}

.pace .pace-progress-inner {
  display: block;
  position: absolute;
  right: 0px;
  width: 100px;
  height: 100%;
  box-shadow: 0 0 10px #29d, 0 0 5px #29d;
  opacity: 1.0;
  -webkit-transform: rotate(3deg) translate(0px, -4px);
  -moz-transform: rotate(3deg) translate(0px, -4px);
  -ms-transform: rotate(3deg) translate(0px, -4px);
  -o-transform: rotate(3deg) translate(0px, -4px);
  transform: rotate(3deg) translate(0px, -4px);
}

.pace .pace-activity {
  display: block;
  position: fixed;
  z-index: 2000;
  top: 15px;
  right: 15px;
  width: 14px;
  height: 14px;
  border: solid 2px transparent;
  border-top-color: #29d;
  border-left-color: #29d;
  border-radius: 10px;
  -webkit-animation: pace-spinner 400ms linear infinite;
  -moz-animation: pace-spinner 400ms linear infinite;
  -ms-animation: pace-spinner 400ms linear infinite;
  -o-animation: pace-spinner 400ms linear infinite;
  animation: pace-spinner 400ms linear infinite;
}

@-webkit-keyframes pace-spinner {
  0% { -webkit-transform: rotate(0deg); transform: rotate(0deg); }
  100% { -webkit-transform: rotate(360deg); transform: rotate(360deg); }
}
@-moz-keyframes pace-spinner {
  0% { -moz-transform: rotate(0deg); transform: rotate(0deg); }
  100% { -moz-transform: rotate(360deg); transform: rotate(360deg); }
}
@-o-keyframes pace-spinner {
  0% { -o-transform: rotate(0deg); transform: rotate(0deg); }
  100% { -o-transform: rotate(360deg); transform: rotate(360deg); }
}
@-ms-keyframes pace-spinner {
  0% { -ms-transform: rotate(0deg); transform: rotate(0deg); }
  100% { -ms-transform: rotate(360deg); transform: rotate(360deg); }
}
@keyframes pace-spinner {
  0% { transform: rotate(0deg); transform: rotate(0deg); }
  100% { transform: rotate(360deg); transform: rotate(360deg); }
}


Barber Shop


.pace {
  -webkit-pointer-events: none;
  pointer-events: none;

  -webkit-user-select: none;
  -moz-user-select: none;
  user-select: none;

  overflow: hidden;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 2000;
  width: 100%;
  height: 12px;
  background: #fff;
}

.pace-inactive {
  display: none;
}

.pace .pace-progress {
  background-color: #29d;
  position: fixed;
  top: 0;
  bottom: 0;
  right: 100%;
  width: 100%;
  overflow: hidden;
}

.pace .pace-activity {
  position: fixed;
  top: 0;
  right: -32px;
  bottom: 0;
  left: 0;

  -webkit-transform: translate3d(0, 0, 0);
  -moz-transform: translate3d(0, 0, 0);
  -ms-transform: translate3d(0, 0, 0);
  -o-transform: translate3d(0, 0, 0);
  transform: translate3d(0, 0, 0);

  background-image: -webkit-gradient(linear, 0 100%, 100% 0, color-stop(0.25, rgba(255, 255, 255, 0.2)), color-stop(0.25, transparent), color-stop(0.5, transparent), color-stop(0.5, rgba(255, 255, 255, 0.2)), color-stop(0.75, rgba(255, 255, 255, 0.2)), color-stop(0.75, transparent), to(transparent));
  background-image: -webkit-linear-gradient(45deg, rgba(255, 255, 255, 0.2) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, 0.2) 50%, rgba(255, 255, 255, 0.2) 75%, transparent 75%, transparent);
  background-image: -moz-linear-gradient(45deg, rgba(255, 255, 255, 0.2) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, 0.2) 50%, rgba(255, 255, 255, 0.2) 75%, transparent 75%, transparent);
  background-image: -o-linear-gradient(45deg, rgba(255, 255, 255, 0.2) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, 0.2) 50%, rgba(255, 255, 255, 0.2) 75%, transparent 75%, transparent);
  background-image: linear-gradient(45deg, rgba(255, 255, 255, 0.2) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, 0.2) 50%, rgba(255, 255, 255, 0.2) 75%, transparent 75%, transparent);
  -webkit-background-size: 32px 32px;
  -moz-background-size: 32px 32px;
  -o-background-size: 32px 32px;
  background-size: 32px 32px;

  -webkit-animation: pace-theme-barber-shop-motion 500ms linear infinite;
  -moz-animation: pace-theme-barber-shop-motion 500ms linear infinite;
  -ms-animation: pace-theme-barber-shop-motion 500ms linear infinite;
  -o-animation: pace-theme-barber-shop-motion 500ms linear infinite;
  animation: pace-theme-barber-shop-motion 500ms linear infinite;
}

@-webkit-keyframes pace-theme-barber-shop-motion {
  0% { -webkit-transform: none; transform: none; }
  100% { -webkit-transform: translate(-32px, 0); transform: translate(-32px, 0); }
}
@-moz-keyframes pace-theme-barber-shop-motion {
  0% { -moz-transform: none; transform: none; }
  100% { -moz-transform: translate(-32px, 0); transform: translate(-32px, 0); }
}
@-o-keyframes pace-theme-barber-shop-motion {
  0% { -o-transform: none; transform: none; }
  100% { -o-transform: translate(-32px, 0); transform: translate(-32px, 0); }
}
@-ms-keyframes pace-theme-barber-shop-motion {
  0% { -ms-transform: none; transform: none; }
  100% { -ms-transform: translate(-32px, 0); transform: translate(-32px, 0); }
}
@keyframes pace-theme-barber-shop-motion {
  0% { transform: none; transform: none; }
  100% { transform: translate(-32px, 0); transform: translate(-32px, 0); }
}


Mac OSX


.pace {
  -webkit-pointer-events: none;
  pointer-events: none;

  -webkit-user-select: none;
  -moz-user-select: none;
  user-select: none;

  overflow: hidden;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 2000;
  width: 100%;
  height: 12px;
  background: #fff;
}

.pace-inactive {
  display: none;
}

.pace .pace-progress {
  background-color: #0087E1;
  position: fixed;
  top: 0;
  right: 100%;
  width: 100%;
  height: 12px;
  overflow: hidden;

  -webkit-border-radius: 0 0 4px 0;
  -moz-border-radius: 0 0 4px 0;
  -o-border-radius: 0 0 4px 0;
  border-radius: 0 0 4px 0;

  -webkit-box-shadow: inset -1px 0 #00558F, inset 0 -1px #00558F, inset 0 2px rgba(255, 255, 255, 0.5), inset 0 6px rgba(255, 255, 255, .3);
  -moz-box-shadow: inset -1px 0 #00558F, inset 0 -1px #00558F, inset 0 2px rgba(255, 255, 255, 0.5), inset 0 6px rgba(255, 255, 255, .3);
  -o-box-shadow: inset -1px 0 #00558F, inset 0 -1px #00558F, inset 0 2px rgba(255, 255, 255, 0.5), inset 0 6px rgba(255, 255, 255, .3);
  box-shadow: inset -1px 0 #00558F, inset 0 -1px #00558F, inset 0 2px rgba(255, 255, 255, 0.5), inset 0 6px rgba(255, 255, 255, .3);
}

.pace .pace-activity {
  position: fixed;
  top: 0;
  left: 0;
  right: -28px;
  bottom: 0;

  -webkit-background-image: radial-gradient(rgba(255, 255, 255, .65) 0%, rgba(255, 255, 255, .15) 100%);
  -moz-background-image: radial-gradient(rgba(255, 255, 255, .65) 0%, rgba(255, 255, 255, .15) 100%);
  -o-background-image: radial-gradient(rgba(255, 255, 255, .65) 0%, rgba(255, 255, 255, .15) 100%);
  background-image: radial-gradient(rgba(255, 255, 255, .65) 0%, rgba(255, 255, 255, .15) 100%);

  -webkit-background-size: 28px 100%;
  -moz-background-size: 28px 100%;
  -o-background-size: 28px 100%;
  background-size: 28px 100%;

  -webkit-animation: pace-theme-mac-osx-motion 500ms linear infinite;
  -moz-animation: pace-theme-mac-osx-motion 500ms linear infinite;
  -ms-animation: pace-theme-mac-osx-motion 500ms linear infinite;
  -o-animation: pace-theme-mac-osx-motion 500ms linear infinite;
  animation: pace-theme-mac-osx-motion 500ms linear infinite;
}

@-webkit-keyframes pace-theme-mac-osx-motion {
  0% { -webkit-transform: none; transform: none; }
  100% { -webkit-transform: translate(-28px, 0); transform: translate(-28px, 0); }
}
@-moz-keyframes pace-theme-mac-osx-motion {
  0% { -moz-transform: none; transform: none; }
  100% { -moz-transform: translate(-28px, 0); transform: translate(-28px, 0); }
}
@-o-keyframes pace-theme-mac-osx-motion {
  0% { -o-transform: none; transform: none; }
  100% { -o-transform: translate(-28px, 0); transform: translate(-28px, 0); }
}
@-ms-keyframes pace-theme-mac-osx-motion {
  0% { -ms-transform: none; transform: none; }
  100% { -ms-transform: translate(-28px, 0); transform: translate(-28px, 0); }
}
@keyframes pace-theme-mac-osx-motion {
  0% { transform: none; transform: none; }
  100% { transform: translate(-28px, 0); transform: translate(-28px, 0); }
}



Fill Left

.pace {
  -webkit-pointer-events: none;
  pointer-events: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  user-select: none;
}

.pace-inactive {
  display: none;
}

.pace .pace-progress {
  background-color: rgba(0, 0, 0, 0.19999999999999996);
  position: fixed;
  z-index: -1;
  top: 0;
  right: 100%;
  bottom: 0;
  width: 100%;
}





Flat Top

.pace {
  -webkit-pointer-events: none;
  pointer-events: none;

  -webkit-user-select: none;
  -moz-user-select: none;
  user-select: none;

  position: fixed;
  top: 0;
  left: 0;
  width: 100%;

  -webkit-transform: translate3d(0, -50px, 0);
  -ms-transform: translate3d(0, -50px, 0);
  transform: translate3d(0, -50px, 0);

  -webkit-transition: -webkit-transform .5s ease-out;
  -ms-transition: -webkit-transform .5s ease-out;
  transition: transform .5s ease-out;
}

.pace.pace-active {
  -webkit-transform: translate3d(0, 0, 0);
  -ms-transform: translate3d(0, 0, 0);
  transform: translate3d(0, 0, 0);
}

.pace .pace-progress {
  display: block;
  position: fixed;
  z-index: 2000;
  top: 0;
  right: 100%;
  width: 100%;
  height: 10px;
  background: #29d;

  pointer-events: none;
}





Big Counter

.pace {
  -webkit-pointer-events: none;
  pointer-events: none;

  -webkit-user-select: none;
  -moz-user-select: none;
  user-select: none;
}

.pace.pace-inactive .pace-progress {
  display: none;
}

.pace .pace-progress {
  position: fixed;
  z-index: 2000;
  top: 0;
  right: 0;
  height: 5rem;
  width: 5rem;

  -webkit-transform: translate3d(0, 0, 0) !important;
  -ms-transform: translate3d(0, 0, 0) !important;
  transform: translate3d(0, 0, 0) !important;
}

.pace .pace-progress:after {
  display: block;
  position: absolute;
  top: 0;
  right: .5rem;
  content: attr(data-progress-text);
  font-family: "Helvetica Neue", sans-serif;
  font-weight: 100;
  font-size: 5rem;
  line-height: 1;
  text-align: right;
  color: rgba(0, 0, 0, 0.19999999999999996);
}





Corner Indicator

.pace {
  -webkit-pointer-events: none;
  pointer-events: none;

  -webkit-user-select: none;
  -moz-user-select: none;
  user-select: none;
}

.pace .pace-activity {
  display: block;
  position: fixed;
  z-index: 2000;
  top: 0;
  right: 0;
  width: 300px;
  height: 300px;
  background: #29d;
  -webkit-transition: -webkit-transform 0.3s;
  transition: transform 0.3s;
  -webkit-transform: translateX(100%) translateY(-100%) rotate(45deg);
  transform: translateX(100%) translateY(-100%) rotate(45deg);
  pointer-events: none;
}

.pace.pace-active .pace-activity {
  -webkit-transform: translateX(50%) translateY(-50%) rotate(45deg);
  transform: translateX(50%) translateY(-50%) rotate(45deg);
}

.pace .pace-activity::before,
.pace .pace-activity::after {
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    position: absolute;
    bottom: 30px;
    left: 50%;
    display: block;
    border: 5px solid #fff;
    border-radius: 50%;
    content: '';
}

.pace .pace-activity::before {
    margin-left: -40px;
    width: 80px;
    height: 80px;
    border-right-color: rgba(0, 0, 0, .2);
    border-left-color: rgba(0, 0, 0, .2);
    -webkit-animation: pace-theme-corner-indicator-spin 3s linear infinite;
    animation: pace-theme-corner-indicator-spin 3s linear infinite;
}

.pace .pace-activity::after {
    bottom: 50px;
    margin-left: -20px;
    width: 40px;
    height: 40px;
    border-top-color: rgba(0, 0, 0, .2);
    border-bottom-color: rgba(0, 0, 0, .2);
    -webkit-animation: pace-theme-corner-indicator-spin 1s linear infinite;
    animation: pace-theme-corner-indicator-spin 1s linear infinite;
}

@-webkit-keyframes pace-theme-corner-indicator-spin {
  0% { -webkit-transform: rotate(0deg); }
  100% { -webkit-transform: rotate(359deg); }
}
@keyframes pace-theme-corner-indicator-spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(359deg); }
}





Bounce

.pace {
  width: 140px;
  height: 300px;
  position: fixed;
  top: -90px;
  right: -20px;
  z-index: 2000;
  -webkit-transform: scale(0);
  -moz-transform: scale(0);
  -ms-transform: scale(0);
  -o-transform: scale(0);
  transform: scale(0);
  opacity: 0;
  -webkit-transition: all 2s linear 0s;
  -moz-transition: all 2s linear 0s;
  transition: all 2s linear 0s;
}

.pace.pace-active {
  -webkit-transform: scale(.25);
  -moz-transform: scale(.25);
  -ms-transform: scale(.25);
  -o-transform: scale(.25);
  transform: scale(.25);
  opacity: 1;
}

.pace .pace-activity {
  width: 140px;
  height: 140px;
  border-radius: 70px;
  background: #29d;
  position: absolute;
  top: 0;
  z-index: 1911;
  -webkit-animation: pace-bounce 1s infinite;
  -moz-animation: pace-bounce 1s infinite;
  -o-animation: pace-bounce 1s infinite;
  -ms-animation: pace-bounce 1s infinite;
  animation: pace-bounce 1s infinite;
}

.pace .pace-progress {
  position: absolute;
  display: block;
  left: 50%;
  bottom: 0;
  z-index: 1910;
  margin-left: -30px;
  width: 60px;
  height: 75px;
  background: rgba(20, 20, 20, .1);
  box-shadow: 0 0 20px 35px rgba(20, 20, 20, .1);
  border-radius: 30px / 40px;
  -webkit-transform: scaleY(.3) !important;
  -moz-transform: scaleY(.3) !important;
  -ms-transform: scaleY(.3) !important;
  -o-transform: scaleY(.3) !important;
  transform: scaleY(.3) !important;
  -webkit-animation: pace-compress .5s infinite alternate;
  -moz-animation: pace-compress .5s infinite alternate;
  -o-animation: pace-compress .5s infinite alternate;
  -ms-animation: pace-compress .5s infinite alternate;
  animation: pace-compress .5s infinite alternate;
}

@-webkit-keyframes pace-bounce {
  0% {
    top: 0;
    -webkit-animation-timing-function: ease-in;
  }
  40% {}
  50% {
    top: 140px;
    height: 140px;
    -webkit-animation-timing-function: ease-out;
  }
  55% {
    top: 160px;
    height: 120px;
    border-radius: 70px / 60px;
    -webkit-animation-timing-function: ease-in;
  }
  65% {
    top: 120px;
    height: 140px;
    border-radius: 70px;
    -webkit-animation-timing-function: ease-out;
  }
  95% {
    top: 0;
    -webkit-animation-timing-function: ease-in;
  }
  100% {
    top: 0;
    -webkit-animation-timing-function: ease-in;
  }
}

@-moz-keyframes pace-bounce {
  0% {
    top: 0;
    -moz-animation-timing-function: ease-in;
  }
  40% {}
  50% {
    top: 140px;
    height: 140px;
    -moz-animation-timing-function: ease-out;
  }
  55% {
    top: 160px;
    height: 120px;
    border-radius: 70px / 60px;
    -moz-animation-timing-function: ease-in;
  }
  65% {
    top: 120px;
    height: 140px;
    border-radius: 70px;
    -moz-animation-timing-function: ease-out;}
  95% {
    top: 0;
    -moz-animation-timing-function: ease-in;
  }
  100% {top: 0;
    -moz-animation-timing-function: ease-in;
  }
}

@keyframes pace-bounce {
  0% {
    top: 0;
    animation-timing-function: ease-in;
  }
  50% {
    top: 140px;
    height: 140px;
    animation-timing-function: ease-out;
  }
  55% {
    top: 160px;
    height: 120px;
    border-radius: 70px / 60px;
    animation-timing-function: ease-in;
  }
  65% {
    top: 120px;
    height: 140px;
    border-radius: 70px;
    animation-timing-function: ease-out;
  }
  95% {
    top: 0;
    animation-timing-function: ease-in;
  }
  100% {
    top: 0;
    animation-timing-function: ease-in;
  }
}

@-webkit-keyframes pace-compress {
  0% {
    bottom: 0;
    margin-left: -30px;
    width: 60px;
    height: 75px;
    background: rgba(20, 20, 20, .1);
    box-shadow: 0 0 20px 35px rgba(20, 20, 20, .1);
    border-radius: 30px / 40px;
    -webkit-animation-timing-function: ease-in;
  }
  100% {
    bottom: 30px;
    margin-left: -10px;
    width: 20px;
    height: 5px;
    background: rgba(20, 20, 20, .3);
    box-shadow: 0 0 20px 35px rgba(20, 20, 20, .3);
    border-radius: 20px / 20px;
    -webkit-animation-timing-function: ease-out;
  }
}

@-moz-keyframes pace-compress {
  0% {
    bottom: 0;
    margin-left: -30px;
    width: 60px;
    height: 75px;
    background: rgba(20, 20, 20, .1);
    box-shadow: 0 0 20px 35px rgba(20, 20, 20, .1);
    border-radius: 30px / 40px;
    -moz-animation-timing-function: ease-in;
  }
  100% {
    bottom: 30px;
    margin-left: -10px;
    width: 20px;
    height: 5px;
    background: rgba(20, 20, 20, .3);
    box-shadow: 0 0 20px 35px rgba(20, 20, 20, .3);
    border-radius: 20px / 20px;
    -moz-animation-timing-function: ease-out;
  }
}

@keyframes pace-compress {
  0% {
    bottom: 0;
    margin-left: -30px;
    width: 60px;
    height: 75px;
    background: rgba(20, 20, 20, .1);
    box-shadow: 0 0 20px 35px rgba(20, 20, 20, .1);
    border-radius: 30px / 40px;
    animation-timing-function: ease-in;
  }
  100% {
    bottom: 30px;
    margin-left: -10px;
    width: 20px;
    height: 5px;
    background: rgba(20, 20, 20, .3);
    box-shadow: 0 0 20px 35px rgba(20, 20, 20, .3);
    border-radius: 20px / 20px;
    animation-timing-function: ease-out;
  }
}




Loading Bar


.pace {
  -webkit-pointer-events: none;
  pointer-events: none;

  -webkit-user-select: none;
  -moz-user-select: none;
  user-select: none;

  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  -ms-box-sizing: border-box;
  -o-box-sizing: border-box;
  box-sizing: border-box;

  -webkit-border-radius: 10px;
  -moz-border-radius: 10px;
  border-radius: 10px;

  -webkit-background-clip: padding-box;
  -moz-background-clip: padding;
  background-clip: padding-box;

  z-index: 2000;
  position: fixed;
  margin: auto;
  top: 12px;
  left: 0;
  right: 0;
  bottom: 0;
  width: 200px;
  height: 50px;
  overflow: hidden;
}

.pace .pace-progress {
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  -ms-box-sizing: border-box;
  -o-box-sizing: border-box;
  box-sizing: border-box;

  -webkit-border-radius: 2px;
  -moz-border-radius: 2px;
  border-radius: 2px;

  -webkit-background-clip: padding-box;
  -moz-background-clip: padding;
  background-clip: padding-box;

  -webkit-transform: translate3d(0, 0, 0);
  transform: translate3d(0, 0, 0);

  display: block;
  position: absolute;
  right: 100%;
  margin-right: -7px;
  width: 93%;
  top: 7px;
  height: 14px;
  font-size: 12px;
  background: #29d;
  color: #29d;
  line-height: 60px;
  font-weight: bold;
  font-family: Helvetica, Arial, "Lucida Grande", sans-serif;

  -webkit-box-shadow: 120px 0 #fff, 240px 0 #fff;
  -ms-box-shadow: 120px 0 #fff, 240px 0 #fff;
  box-shadow: 120px 0 #fff, 240px 0 #fff;
}

.pace .pace-progress:after {
  content: attr(data-progress-text);
  display: inline-block;
  position: fixed;
  width: 45px;
  text-align: right;
  right: 0;
  padding-right: 16px;
  top: 4px;
}

.pace .pace-progress[data-progress-text="0%"]:after { right: -200px }
.pace .pace-progress[data-progress-text="1%"]:after { right: -198.14px }
.pace .pace-progress[data-progress-text="2%"]:after { right: -196.28px }
.pace .pace-progress[data-progress-text="3%"]:after { right: -194.42px }
.pace .pace-progress[data-progress-text="4%"]:after { right: -192.56px }
.pace .pace-progress[data-progress-text="5%"]:after { right: -190.7px }
.pace .pace-progress[data-progress-text="6%"]:after { right: -188.84px }
.pace .pace-progress[data-progress-text="7%"]:after { right: -186.98px }
.pace .pace-progress[data-progress-text="8%"]:after { right: -185.12px }
.pace .pace-progress[data-progress-text="9%"]:after { right: -183.26px }
.pace .pace-progress[data-progress-text="10%"]:after { right: -181.4px }
.pace .pace-progress[data-progress-text="11%"]:after { right: -179.54px }
.pace .pace-progress[data-progress-text="12%"]:after { right: -177.68px }
.pace .pace-progress[data-progress-text="13%"]:after { right: -175.82px }
.pace .pace-progress[data-progress-text="14%"]:after { right: -173.96px }
.pace .pace-progress[data-progress-text="15%"]:after { right: -172.1px }
.pace .pace-progress[data-progress-text="16%"]:after { right: -170.24px }
.pace .pace-progress[data-progress-text="17%"]:after { right: -168.38px }
.pace .pace-progress[data-progress-text="18%"]:after { right: -166.52px }
.pace .pace-progress[data-progress-text="19%"]:after { right: -164.66px }
.pace .pace-progress[data-progress-text="20%"]:after { right: -162.8px }
.pace .pace-progress[data-progress-text="21%"]:after { right: -160.94px }
.pace .pace-progress[data-progress-text="22%"]:after { right: -159.08px }
.pace .pace-progress[data-progress-text="23%"]:after { right: -157.22px }
.pace .pace-progress[data-progress-text="24%"]:after { right: -155.36px }
.pace .pace-progress[data-progress-text="25%"]:after { right: -153.5px }
.pace .pace-progress[data-progress-text="26%"]:after { right: -151.64px }
.pace .pace-progress[data-progress-text="27%"]:after { right: -149.78px }
.pace .pace-progress[data-progress-text="28%"]:after { right: -147.92px }
.pace .pace-progress[data-progress-text="29%"]:after { right: -146.06px }
.pace .pace-progress[data-progress-text="30%"]:after { right: -144.2px }
.pace .pace-progress[data-progress-text="31%"]:after { right: -142.34px }
.pace .pace-progress[data-progress-text="32%"]:after { right: -140.48px }
.pace .pace-progress[data-progress-text="33%"]:after { right: -138.62px }
.pace .pace-progress[data-progress-text="34%"]:after { right: -136.76px }
.pace .pace-progress[data-progress-text="35%"]:after { right: -134.9px }
.pace .pace-progress[data-progress-text="36%"]:after { right: -133.04px }
.pace .pace-progress[data-progress-text="37%"]:after { right: -131.18px }
.pace .pace-progress[data-progress-text="38%"]:after { right: -129.32px }
.pace .pace-progress[data-progress-text="39%"]:after { right: -127.46px }
.pace .pace-progress[data-progress-text="40%"]:after { right: -125.6px }
.pace .pace-progress[data-progress-text="41%"]:after { right: -123.74px }
.pace .pace-progress[data-progress-text="42%"]:after { right: -121.88px }
.pace .pace-progress[data-progress-text="43%"]:after { right: -120.02px }
.pace .pace-progress[data-progress-text="44%"]:after { right: -118.16px }
.pace .pace-progress[data-progress-text="45%"]:after { right: -116.3px }
.pace .pace-progress[data-progress-text="46%"]:after { right: -114.44px }
.pace .pace-progress[data-progress-text="47%"]:after { right: -112.58px }
.pace .pace-progress[data-progress-text="48%"]:after { right: -110.72px }
.pace .pace-progress[data-progress-text="49%"]:after { right: -108.86px }
.pace .pace-progress[data-progress-text="50%"]:after { right: -107px }
.pace .pace-progress[data-progress-text="51%"]:after { right: -105.14px }
.pace .pace-progress[data-progress-text="52%"]:after { right: -103.28px }
.pace .pace-progress[data-progress-text="53%"]:after { right: -101.42px }
.pace .pace-progress[data-progress-text="54%"]:after { right: -99.56px }
.pace .pace-progress[data-progress-text="55%"]:after { right: -97.7px }
.pace .pace-progress[data-progress-text="56%"]:after { right: -95.84px }
.pace .pace-progress[data-progress-text="57%"]:after { right: -93.98px }
.pace .pace-progress[data-progress-text="58%"]:after { right: -92.12px }
.pace .pace-progress[data-progress-text="59%"]:after { right: -90.26px }
.pace .pace-progress[data-progress-text="60%"]:after { right: -88.4px }
.pace .pace-progress[data-progress-text="61%"]:after { right: -86.53999999999999px }
.pace .pace-progress[data-progress-text="62%"]:after { right: -84.68px }
.pace .pace-progress[data-progress-text="63%"]:after { right: -82.82px }
.pace .pace-progress[data-progress-text="64%"]:after { right: -80.96000000000001px }
.pace .pace-progress[data-progress-text="65%"]:after { right: -79.1px }
.pace .pace-progress[data-progress-text="66%"]:after { right: -77.24px }
.pace .pace-progress[data-progress-text="67%"]:after { right: -75.38px }
.pace .pace-progress[data-progress-text="68%"]:after { right: -73.52px }
.pace .pace-progress[data-progress-text="69%"]:after { right: -71.66px }
.pace .pace-progress[data-progress-text="70%"]:after { right: -69.8px }
.pace .pace-progress[data-progress-text="71%"]:after { right: -67.94px }
.pace .pace-progress[data-progress-text="72%"]:after { right: -66.08px }
.pace .pace-progress[data-progress-text="73%"]:after { right: -64.22px }
.pace .pace-progress[data-progress-text="74%"]:after { right: -62.36px }
.pace .pace-progress[data-progress-text="75%"]:after { right: -60.5px }
.pace .pace-progress[data-progress-text="76%"]:after { right: -58.64px }
.pace .pace-progress[data-progress-text="77%"]:after { right: -56.78px }
.pace .pace-progress[data-progress-text="78%"]:after { right: -54.92px }
.pace .pace-progress[data-progress-text="79%"]:after { right: -53.06px }
.pace .pace-progress[data-progress-text="80%"]:after { right: -51.2px }
.pace .pace-progress[data-progress-text="81%"]:after { right: -49.34px }
.pace .pace-progress[data-progress-text="82%"]:after { right: -47.480000000000004px }
.pace .pace-progress[data-progress-text="83%"]:after { right: -45.62px }
.pace .pace-progress[data-progress-text="84%"]:after { right: -43.76px }
.pace .pace-progress[data-progress-text="85%"]:after { right: -41.9px }
.pace .pace-progress[data-progress-text="86%"]:after { right: -40.04px }
.pace .pace-progress[data-progress-text="87%"]:after { right: -38.18px }
.pace .pace-progress[data-progress-text="88%"]:after { right: -36.32px }
.pace .pace-progress[data-progress-text="89%"]:after { right: -34.46px }
.pace .pace-progress[data-progress-text="90%"]:after { right: -32.6px }
.pace .pace-progress[data-progress-text="91%"]:after { right: -30.740000000000002px }
.pace .pace-progress[data-progress-text="92%"]:after { right: -28.880000000000003px }
.pace .pace-progress[data-progress-text="93%"]:after { right: -27.02px }
.pace .pace-progress[data-progress-text="94%"]:after { right: -25.16px }
.pace .pace-progress[data-progress-text="95%"]:after { right: -23.3px }
.pace .pace-progress[data-progress-text="96%"]:after { right: -21.439999999999998px }
.pace .pace-progress[data-progress-text="97%"]:after { right: -19.58px }
.pace .pace-progress[data-progress-text="98%"]:after { right: -17.72px }
.pace .pace-progress[data-progress-text="99%"]:after { right: -15.86px }
.pace .pace-progress[data-progress-text="100%"]:after { right: -14px }


.pace .pace-activity {
  position: absolute;
  width: 100%;
  height: 28px;
  z-index: 2001;
  box-shadow: inset 0 0 0 2px #29d, inset 0 0 0 7px #FFF;
  border-radius: 10px;
}

.pace.pace-inactive {
  display: none;
}




Center Circle

.pace {
  -webkit-pointer-events: none;
  pointer-events: none;

  -webkit-user-select: none;
  -moz-user-select: none;
  user-select: none;

  -webkit-perspective: 12rem;
  -moz-perspective: 12rem;
  -ms-perspective: 12rem;
  -o-perspective: 12rem;
  perspective: 12rem;

  z-index: 2000;
  position: fixed;
  height: 6rem;
  width: 6rem;
  margin: auto;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
}

.pace.pace-inactive .pace-progress {
  display: none;
}

.pace .pace-progress {
  position: fixed;
  z-index: 2000;
  display: block;
  position: absolute;
  left: 0;
  top: 0;
  height: 6rem;
  width: 6rem !important;
  line-height: 6rem;
  font-size: 2rem;
  border-radius: 50%;
  background: rgba(34, 153, 221, 0.8);
  color: #fff;
  font-family: "Helvetica Neue", sans-serif;
  font-weight: 100;
  text-align: center;

  -webkit-animation: pace-theme-center-circle-spin linear infinite 2s;
  -moz-animation: pace-theme-center-circle-spin linear infinite 2s;
  -ms-animation: pace-theme-center-circle-spin linear infinite 2s;
  -o-animation: pace-theme-center-circle-spin linear infinite 2s;
  animation: pace-theme-center-circle-spin linear infinite 2s;

  -webkit-transform-style: preserve-3d;
  -moz-transform-style: preserve-3d;
  -ms-transform-style: preserve-3d;
  -o-transform-style: preserve-3d;
  transform-style: preserve-3d;
}

.pace .pace-progress:after {
  content: attr(data-progress-text);
  display: block;
}

@-webkit-keyframes pace-theme-center-circle-spin {
  from { -webkit-transform: rotateY(0deg) }
  to { -webkit-transform: rotateY(360deg) }
}

@-moz-keyframes pace-theme-center-circle-spin {
  from { -moz-transform: rotateY(0deg) }
  to { -moz-transform: rotateY(360deg) }
}

@-ms-keyframes pace-theme-center-circle-spin {
  from { -ms-transform: rotateY(0deg) }
  to { -ms-transform: rotateY(360deg) }
}

@-o-keyframes pace-theme-center-circle-spin {
  from { -o-transform: rotateY(0deg) }
  to { -o-transform: rotateY(360deg) }
}

@keyframes pace-theme-center-circle-spin {
  from { transform: rotateY(0deg) }
  to { transform: rotateY(360deg) }
}




Center Atom

.pace.pace-inactive {
  display: none;
}

.pace {
  -webkit-pointer-events: none;
  pointer-events: none;

  -webkit-user-select: none;
  -moz-user-select: none;
  user-select: none;

  z-index: 2000;
  position: fixed;
  height: 60px;
  width: 100px;
  margin: auto;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
}

.pace .pace-progress {
  z-index: 2000;
  position: absolute;
  height: 60px;
  width: 100px;

  -webkit-transform: translate3d(0, 0, 0) !important;
  -ms-transform: translate3d(0, 0, 0) !important;
  transform: translate3d(0, 0, 0) !important;
}

.pace .pace-progress:before {
  content: attr(data-progress-text);
  text-align: center;
  color: #fff;
  background: #29d;
  border-radius: 50%;
  font-family: "Helvetica Neue", sans-serif;
  font-size: 14px;
  font-weight: 100;
  line-height: 1;
  padding: 20% 0 7px;
  width: 50%;
  height: 40%;
  margin: 10px 0 0 30px;
  display: block;
  z-index: 999;
  position: absolute;
}

.pace .pace-activity {
  font-size: 15px;
  line-height: 1;
  z-index: 2000;
  position: absolute;
  height: 60px;
  width: 100px;

  display: block;
  -webkit-animation: pace-theme-center-atom-spin 2s linear infinite;
  -moz-animation: pace-theme-center-atom-spin 2s linear infinite;
  -o-animation: pace-theme-center-atom-spin 2s linear infinite;
  animation: pace-theme-center-atom-spin 2s linear infinite;
}

.pace .pace-activity {
  border-radius: 50%;
  border: 5px solid #29d;
  content: ' ';
  display: block;
  position: absolute;
  top: 0;
  left: 0;
  height: 60px;
  width: 100px;
}

.pace .pace-activity:after {
  border-radius: 50%;
  border: 5px solid #29d;
  content: ' ';
  display: block;
  position: absolute;
  top: -5px;
  left: -5px;
  height: 60px;
  width: 100px;

  -webkit-transform: rotate(60deg);
  -moz-transform: rotate(60deg);
  -o-transform: rotate(60deg);
  transform: rotate(60deg);
}

.pace .pace-activity:before {
  border-radius: 50%;
  border: 5px solid #29d;
  content: ' ';
  display: block;
  position: absolute;
  top: -5px;
  left: -5px;
  height: 60px;
  width: 100px;

  -webkit-transform: rotate(120deg);
  -moz-transform: rotate(120deg);
  -o-transform: rotate(120deg);
  transform: rotate(120deg);
}

@-webkit-keyframes pace-theme-center-atom-spin {
  0%   { -webkit-transform: rotate(0deg) }
  100% { -webkit-transform: rotate(359deg) }
}
@-moz-keyframes pace-theme-center-atom-spin {
  0%   { -moz-transform: rotate(0deg) }
  100% { -moz-transform: rotate(359deg) }
}
@-o-keyframes pace-theme-center-atom-spin {
  0%   { -o-transform: rotate(0deg) }
  100% { -o-transform: rotate(359deg) }
}
@keyframes pace-theme-center-atom-spin {
  0%   { transform: rotate(0deg) }
  100% { transform: rotate(359deg) }
}




Center Radar

.pace {
  -webkit-pointer-events: none;
  pointer-events: none;

  -webkit-user-select: none;
  -moz-user-select: none;
  user-select: none;

  z-index: 2000;
  position: fixed;
  height: 90px;
  width: 90px;
  margin: auto;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
}

.pace.pace-inactive .pace-activity {
  display: none;
}

.pace .pace-activity {
  position: fixed;
  z-index: 2000;
  display: block;
  position: absolute;
  left: -30px;
  top: -30px;
  height: 90px;
  width: 90px;
  display: block;
  border-width: 30px;
  border-style: double;
  border-color: #29d transparent transparent;
  border-radius: 50%;

  -webkit-animation: spin 1s linear infinite;
  -moz-animation: spin 1s linear infinite;
  -o-animation: spin 1s linear infinite;
  animation: spin 1s linear infinite;
}

.pace .pace-activity:before {
  content: ' ';
  position: absolute;
  top: 10px;
  left: 10px;
  height: 50px;
  width: 50px;
  display: block;
  border-width: 10px;
  border-style: solid;
  border-color: #29d transparent transparent;
  border-radius: 50%;
}

@-webkit-keyframes spin {
  100% { -webkit-transform: rotate(359deg); }
}

@-moz-keyframes spin {
  100% { -moz-transform: rotate(359deg); }
}

@-o-keyframes spin {
  100% { -moz-transform: rotate(359deg); }
}

@keyframes spin {
  100% {  transform: rotate(359deg); }
}




Center Simple


.pace {
  -webkit-pointer-events: none;
  pointer-events: none;

  -webkit-user-select: none;
  -moz-user-select: none;
  user-select: none;

  z-index: 2000;
  position: fixed;
  margin: auto;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  height: 5px;
  width: 200px;
  background: #fff;
  border: 1px solid #29d;

  overflow: hidden;
}

.pace .pace-progress {
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  -ms-box-sizing: border-box;
  -o-box-sizing: border-box;
  box-sizing: border-box;

  -webkit-transform: translate3d(0, 0, 0);
  -moz-transform: translate3d(0, 0, 0);
  -ms-transform: translate3d(0, 0, 0);
  -o-transform: translate3d(0, 0, 0);
  transform: translate3d(0, 0, 0);

  max-width: 200px;
  position: fixed;
  z-index: 2000;
  display: block;
  position: absolute;
  top: 0;
  right: 100%;
  height: 100%;
  width: 100%;
  background: #29d;
}

.pace.pace-inactive {
  display: none;
}

js模拟浏览器加载效果 pace.js 中文官方文档
pace

Flash
.pace { -webkit-pointer-events: none; pointer-events: none; -webkit-user-select: none; -moz-user-select: none; user-select: none;}
.pace-inactive { display: none;}
.pace .pace-progress { background: #29d; position: fixed; z-index: 2000; top: 0; right: 100%; 100%; height: 2px;}
.pace .pace-progress-inner { display: block; position: absolute; right: 0px; 100px; height: 100%; box-shadow: 0 0 10px #29d, 0 0 5px #29d; opacity: 1.0; -webkit-transform: rotate(3deg) translate(0px, -4px); -moz-transform: rotate(3deg) translate(0px, -4px); -ms-transform: rotate(3deg) translate(0px, -4px); -o-transform: rotate(3deg) translate(0px, -4px); transform: rotate(3deg) translate(0px, -4px);}
.pace .pace-activity { display: block; position: fixed; z-index: 2000; top: 15px; right: 15px; 14px; height: 14px; border: solid 2px transparent; border-top-color: #29d; border-left-color: #29d; border-radius: 10px; -webkit-animation: pace-spinner 400ms linear infinite; -moz-animation: pace-spinner 400ms linear infinite; -ms-animation: pace-spinner 400ms linear infinite; -o-animation: pace-spinner 400ms linear infinite; animation: pace-spinner 400ms linear infinite;}
@-webkit-keyframes pace-spinner { 0% { -webkit-transform: rotate(0deg); transform: rotate(0deg); } 100% { -webkit-transform: rotate(360deg); transform: rotate(360deg); }}@-moz-keyframes pace-spinner { 0% { -moz-transform: rotate(0deg); transform: rotate(0deg); } 100% { -moz-transform: rotate(360deg); transform: rotate(360deg); }}@-o-keyframes pace-spinner { 0% { -o-transform: rotate(0deg); transform: rotate(0deg); } 100% { -o-transform: rotate(360deg); transform: rotate(360deg); }}@-ms-keyframes pace-spinner { 0% { -ms-transform: rotate(0deg); transform: rotate(0deg); } 100% { -ms-transform: rotate(360deg); transform: rotate(360deg); }}@keyframes pace-spinner { 0% { transform: rotate(0deg); transform: rotate(0deg); } 100% { transform: rotate(360deg); transform: rotate(360deg); }}

Barber Shop

.pace { -webkit-pointer-events: none; pointer-events: none;
-webkit-user-select: none; -moz-user-select: none; user-select: none;
overflow: hidden; position: fixed; top: 0; left: 0; z-index: 2000; 100%; height: 12px; background: #fff;}
.pace-inactive { display: none;}
.pace .pace-progress { background-color: #29d; position: fixed; top: 0; bottom: 0; right: 100%; 100%; overflow: hidden;}
.pace .pace-activity { position: fixed; top: 0; right: -32px; bottom: 0; left: 0;
-webkit-transform: translate3d(0, 0, 0); -moz-transform: translate3d(0, 0, 0); -ms-transform: translate3d(0, 0, 0); -o-transform: translate3d(0, 0, 0); transform: translate3d(0, 0, 0);
background-image: -webkit-gradient(linear, 0 100%, 100% 0, color-stop(0.25, rgba(255, 255, 255, 0.2)), color-stop(0.25, transparent), color-stop(0.5, transparent), color-stop(0.5, rgba(255, 255, 255, 0.2)), color-stop(0.75, rgba(255, 255, 255, 0.2)), color-stop(0.75, transparent), to(transparent)); background-image: -webkit-linear-gradient(45deg, rgba(255, 255, 255, 0.2) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, 0.2) 50%, rgba(255, 255, 255, 0.2) 75%, transparent 75%, transparent); background-image: -moz-linear-gradient(45deg, rgba(255, 255, 255, 0.2) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, 0.2) 50%, rgba(255, 255, 255, 0.2) 75%, transparent 75%, transparent); background-image: -o-linear-gradient(45deg, rgba(255, 255, 255, 0.2) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, 0.2) 50%, rgba(255, 255, 255, 0.2) 75%, transparent 75%, transparent); background-image: linear-gradient(45deg, rgba(255, 255, 255, 0.2) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, 0.2) 50%, rgba(255, 255, 255, 0.2) 75%, transparent 75%, transparent); -webkit-background-size: 32px 32px; -moz-background-size: 32px 32px; -o-background-size: 32px 32px; background-size: 32px 32px;
-webkit-animation: pace-theme-barber-shop-motion 500ms linear infinite; -moz-animation: pace-theme-barber-shop-motion 500ms linear infinite; -ms-animation: pace-theme-barber-shop-motion 500ms linear infinite; -o-animation: pace-theme-barber-shop-motion 500ms linear infinite; animation: pace-theme-barber-shop-motion 500ms linear infinite;}
@-webkit-keyframes pace-theme-barber-shop-motion { 0% { -webkit-transform: none; transform: none; } 100% { -webkit-transform: translate(-32px, 0); transform: translate(-32px, 0); }}@-moz-keyframes pace-theme-barber-shop-motion { 0% { -moz-transform: none; transform: none; } 100% { -moz-transform: translate(-32px, 0); transform: translate(-32px, 0); }}@-o-keyframes pace-theme-barber-shop-motion { 0% { -o-transform: none; transform: none; } 100% { -o-transform: translate(-32px, 0); transform: translate(-32px, 0); }}@-ms-keyframes pace-theme-barber-shop-motion { 0% { -ms-transform: none; transform: none; } 100% { -ms-transform: translate(-32px, 0); transform: translate(-32px, 0); }}@keyframes pace-theme-barber-shop-motion { 0% { transform: none; transform: none; } 100% { transform: translate(-32px, 0); transform: translate(-32px, 0); }}

Mac OSX

.pace { -webkit-pointer-events: none; pointer-events: none;
-webkit-user-select: none; -moz-user-select: none; user-select: none;
overflow: hidden; position: fixed; top: 0; left: 0; z-index: 2000; 100%; height: 12px; background: #fff;}
.pace-inactive { display: none;}
.pace .pace-progress { background-color: #0087E1; position: fixed; top: 0; right: 100%; 100%; height: 12px; overflow: hidden;
-webkit-border-radius: 0 0 4px 0; -moz-border-radius: 0 0 4px 0; -o-border-radius: 0 0 4px 0; border-radius: 0 0 4px 0;
-webkit-box-shadow: inset -1px 0 #00558F, inset 0 -1px #00558F, inset 0 2px rgba(255, 255, 255, 0.5), inset 0 6px rgba(255, 255, 255, .3); -moz-box-shadow: inset -1px 0 #00558F, inset 0 -1px #00558F, inset 0 2px rgba(255, 255, 255, 0.5), inset 0 6px rgba(255, 255, 255, .3); -o-box-shadow: inset -1px 0 #00558F, inset 0 -1px #00558F, inset 0 2px rgba(255, 255, 255, 0.5), inset 0 6px rgba(255, 255, 255, .3); box-shadow: inset -1px 0 #00558F, inset 0 -1px #00558F, inset 0 2px rgba(255, 255, 255, 0.5), inset 0 6px rgba(255, 255, 255, .3);}
.pace .pace-activity { position: fixed; top: 0; left: 0; right: -28px; bottom: 0;
-webkit-background-image: radial-gradient(rgba(255, 255, 255, .65) 0%, rgba(255, 255, 255, .15) 100%); -moz-background-image: radial-gradient(rgba(255, 255, 255, .65) 0%, rgba(255, 255, 255, .15) 100%); -o-background-image: radial-gradient(rgba(255, 255, 255, .65) 0%, rgba(255, 255, 255, .15) 100%); background-image: radial-gradient(rgba(255, 255, 255, .65) 0%, rgba(255, 255, 255, .15) 100%);
-webkit-background-size: 28px 100%; -moz-background-size: 28px 100%; -o-background-size: 28px 100%; background-size: 28px 100%;
-webkit-animation: pace-theme-mac-osx-motion 500ms linear infinite; -moz-animation: pace-theme-mac-osx-motion 500ms linear infinite; -ms-animation: pace-theme-mac-osx-motion 500ms linear infinite; -o-animation: pace-theme-mac-osx-motion 500ms linear infinite; animation: pace-theme-mac-osx-motion 500ms linear infinite;}
@-webkit-keyframes pace-theme-mac-osx-motion { 0% { -webkit-transform: none; transform: none; } 100% { -webkit-transform: translate(-28px, 0); transform: translate(-28px, 0); }}@-moz-keyframes pace-theme-mac-osx-motion { 0% { -moz-transform: none; transform: none; } 100% { -moz-transform: translate(-28px, 0); transform: translate(-28px, 0); }}@-o-keyframes pace-theme-mac-osx-motion { 0% { -o-transform: none; transform: none; } 100% { -o-transform: translate(-28px, 0); transform: translate(-28px, 0); }}@-ms-keyframes pace-theme-mac-osx-motion { 0% { -ms-transform: none; transform: none; } 100% { -ms-transform: translate(-28px, 0); transform: translate(-28px, 0); }}@keyframes pace-theme-mac-osx-motion { 0% { transform: none; transform: none; } 100% { transform: translate(-28px, 0); transform: translate(-28px, 0); }}

Fill Left
.pace { -webkit-pointer-events: none; pointer-events: none; -webkit-user-select: none; -moz-user-select: none; user-select: none;}
.pace-inactive { display: none;}
.pace .pace-progress { background-color: rgba(0, 0, 0, 0.19999999999999996); position: fixed; z-index: -1; top: 0; right: 100%; bottom: 0; 100%;}

Flat Top
.pace { -webkit-pointer-events: none; pointer-events: none;
-webkit-user-select: none; -moz-user-select: none; user-select: none;
position: fixed; top: 0; left: 0; 100%;
-webkit-transform: translate3d(0, -50px, 0); -ms-transform: translate3d(0, -50px, 0); transform: translate3d(0, -50px, 0);
-webkit-transition: -webkit-transform .5s ease-out; -ms-transition: -webkit-transform .5s ease-out; transition: transform .5s ease-out;}
.pace.pace-active { -webkit-transform: translate3d(0, 0, 0); -ms-transform: translate3d(0, 0, 0); transform: translate3d(0, 0, 0);}
.pace .pace-progress { display: block; position: fixed; z-index: 2000; top: 0; right: 100%; 100%; height: 10px; background: #29d;
pointer-events: none;}

Big Counter
.pace { -webkit-pointer-events: none; pointer-events: none;
-webkit-user-select: none; -moz-user-select: none; user-select: none;}
.pace.pace-inactive .pace-progress { display: none;}
.pace .pace-progress { position: fixed; z-index: 2000; top: 0; right: 0; height: 5rem; 5rem;
-webkit-transform: translate3d(0, 0, 0) !important; -ms-transform: translate3d(0, 0, 0) !important; transform: translate3d(0, 0, 0) !important;}
.pace .pace-progress:after { display: block; position: absolute; top: 0; right: .5rem; content: attr(data-progress-text); font-family: "Helvetica Neue", sans-serif; font-weight: 100; font-size: 5rem; line-height: 1; text-align: right; color: rgba(0, 0, 0, 0.19999999999999996);}

Corner Indicator
.pace { -webkit-pointer-events: none; pointer-events: none;
-webkit-user-select: none; -moz-user-select: none; user-select: none;}
.pace .pace-activity { display: block; position: fixed; z-index: 2000; top: 0; right: 0; 300px; height: 300px; background: #29d; -webkit-transition: -webkit-transform 0.3s; transition: transform 0.3s; -webkit-transform: translateX(100%) translateY(-100%) rotate(45deg); transform: translateX(100%) translateY(-100%) rotate(45deg); pointer-events: none;}
.pace.pace-active .pace-activity { -webkit-transform: translateX(50%) translateY(-50%) rotate(45deg); transform: translateX(50%) translateY(-50%) rotate(45deg);}
.pace .pace-activity::before,.pace .pace-activity::after { -moz-box-sizing: border-box; box-sizing: border-box; position: absolute; bottom: 30px; left: 50%; display: block; border: 5px solid #fff; border-radius: 50%; content: '';}
.pace .pace-activity::before { margin-left: -40px; 80px; height: 80px; border-right-color: rgba(0, 0, 0, .2); border-left-color: rgba(0, 0, 0, .2); -webkit-animation: pace-theme-corner-indicator-spin 3s linear infinite; animation: pace-theme-corner-indicator-spin 3s linear infinite;}
.pace .pace-activity::after { bottom: 50px; margin-left: -20px; 40px; height: 40px; border-top-color: rgba(0, 0, 0, .2); border-bottom-color: rgba(0, 0, 0, .2); -webkit-animation: pace-theme-corner-indicator-spin 1s linear infinite; animation: pace-theme-corner-indicator-spin 1s linear infinite;}
@-webkit-keyframes pace-theme-corner-indicator-spin { 0% { -webkit-transform: rotate(0deg); } 100% { -webkit-transform: rotate(359deg); }}@keyframes pace-theme-corner-indicator-spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(359deg); }}

Bounce
.pace { 140px; height: 300px; position: fixed; top: -90px; right: -20px; z-index: 2000; -webkit-transform: scale(0); -moz-transform: scale(0); -ms-transform: scale(0); -o-transform: scale(0); transform: scale(0); opacity: 0; -webkit-transition: all 2s linear 0s; -moz-transition: all 2s linear 0s; transition: all 2s linear 0s;}
.pace.pace-active { -webkit-transform: scale(.25); -moz-transform: scale(.25); -ms-transform: scale(.25); -o-transform: scale(.25); transform: scale(.25); opacity: 1;}
.pace .pace-activity { 140px; height: 140px; border-radius: 70px; background: #29d; position: absolute; top: 0; z-index: 1911; -webkit-animation: pace-bounce 1s infinite; -moz-animation: pace-bounce 1s infinite; -o-animation: pace-bounce 1s infinite; -ms-animation: pace-bounce 1s infinite; animation: pace-bounce 1s infinite;}
.pace .pace-progress { position: absolute; display: block; left: 50%; bottom: 0; z-index: 1910; margin-left: -30px; 60px; height: 75px; background: rgba(20, 20, 20, .1); box-shadow: 0 0 20px 35px rgba(20, 20, 20, .1); border-radius: 30px / 40px; -webkit-transform: scaleY(.3) !important; -moz-transform: scaleY(.3) !important; -ms-transform: scaleY(.3) !important; -o-transform: scaleY(.3) !important; transform: scaleY(.3) !important; -webkit-animation: pace-compress .5s infinite alternate; -moz-animation: pace-compress .5s infinite alternate; -o-animation: pace-compress .5s infinite alternate; -ms-animation: pace-compress .5s infinite alternate; animation: pace-compress .5s infinite alternate;}
@-webkit-keyframes pace-bounce { 0% { top: 0; -webkit-animation-timing-function: ease-in; } 40% {} 50% { top: 140px; height: 140px; -webkit-animation-timing-function: ease-out; } 55% { top: 160px; height: 120px; border-radius: 70px / 60px; -webkit-animation-timing-function: ease-in; } 65% { top: 120px; height: 140px; border-radius: 70px; -webkit-animation-timing-function: ease-out; } 95% { top: 0; -webkit-animation-timing-function: ease-in; } 100% { top: 0; -webkit-animation-timing-function: ease-in; }}
@-moz-keyframes pace-bounce { 0% { top: 0; -moz-animation-timing-function: ease-in; } 40% {} 50% { top: 140px; height: 140px; -moz-animation-timing-function: ease-out; } 55% { top: 160px; height: 120px; border-radius: 70px / 60px; -moz-animation-timing-function: ease-in; } 65% { top: 120px; height: 140px; border-radius: 70px; -moz-animation-timing-function: ease-out;} 95% { top: 0; -moz-animation-timing-function: ease-in; } 100% {top: 0; -moz-animation-timing-function: ease-in; }}
@keyframes pace-bounce { 0% { top: 0; animation-timing-function: ease-in; } 50% { top: 140px; height: 140px; animation-timing-function: ease-out; } 55% { top: 160px; height: 120px; border-radius: 70px / 60px; animation-timing-function: ease-in; } 65% { top: 120px; height: 140px; border-radius: 70px; animation-timing-function: ease-out; } 95% { top: 0; animation-timing-function: ease-in; } 100% { top: 0; animation-timing-function: ease-in; }}
@-webkit-keyframes pace-compress { 0% { bottom: 0; margin-left: -30px; 60px; height: 75px; background: rgba(20, 20, 20, .1); box-shadow: 0 0 20px 35px rgba(20, 20, 20, .1); border-radius: 30px / 40px; -webkit-animation-timing-function: ease-in; } 100% { bottom: 30px; margin-left: -10px; 20px; height: 5px; background: rgba(20, 20, 20, .3); box-shadow: 0 0 20px 35px rgba(20, 20, 20, .3); border-radius: 20px / 20px; -webkit-animation-timing-function: ease-out; }}
@-moz-keyframes pace-compress { 0% { bottom: 0; margin-left: -30px; 60px; height: 75px; background: rgba(20, 20, 20, .1); box-shadow: 0 0 20px 35px rgba(20, 20, 20, .1); border-radius: 30px / 40px; -moz-animation-timing-function: ease-in; } 100% { bottom: 30px; margin-left: -10px; 20px; height: 5px; background: rgba(20, 20, 20, .3); box-shadow: 0 0 20px 35px rgba(20, 20, 20, .3); border-radius: 20px / 20px; -moz-animation-timing-function: ease-out; }}
@keyframes pace-compress { 0% { bottom: 0; margin-left: -30px; 60px; height: 75px; background: rgba(20, 20, 20, .1); box-shadow: 0 0 20px 35px rgba(20, 20, 20, .1); border-radius: 30px / 40px; animation-timing-function: ease-in; } 100% { bottom: 30px; margin-left: -10px; 20px; height: 5px; background: rgba(20, 20, 20, .3); box-shadow: 0 0 20px 35px rgba(20, 20, 20, .3); border-radius: 20px / 20px; animation-timing-function: ease-out; }}

Loading Bar

.pace { -webkit-pointer-events: none; pointer-events: none;
-webkit-user-select: none; -moz-user-select: none; user-select: none;
-webkit-box-sizing: border-box; -moz-box-sizing: border-box; -ms-box-sizing: border-box; -o-box-sizing: border-box; box-sizing: border-box;
-webkit-border-radius: 10px; -moz-border-radius: 10px; border-radius: 10px;
-webkit-background-clip: padding-box; -moz-background-clip: padding; background-clip: padding-box;
z-index: 2000; position: fixed; margin: auto; top: 12px; left: 0; right: 0; bottom: 0; 200px; height: 50px; overflow: hidden;}
.pace .pace-progress { -webkit-box-sizing: border-box; -moz-box-sizing: border-box; -ms-box-sizing: border-box; -o-box-sizing: border-box; box-sizing: border-box;
-webkit-border-radius: 2px; -moz-border-radius: 2px; border-radius: 2px;
-webkit-background-clip: padding-box; -moz-background-clip: padding; background-clip: padding-box;
-webkit-transform: translate3d(0, 0, 0); transform: translate3d(0, 0, 0);
display: block; position: absolute; right: 100%; margin-right: -7px; 93%; top: 7px; height: 14px; font-size: 12px; background: #29d; color: #29d; line-height: 60px; font-weight: bold; font-family: Helvetica, Arial, "Lucida Grande", sans-serif;
-webkit-box-shadow: 120px 0 #fff, 240px 0 #fff; -ms-box-shadow: 120px 0 #fff, 240px 0 #fff; box-shadow: 120px 0 #fff, 240px 0 #fff;}
.pace .pace-progress:after { content: attr(data-progress-text); display: inline-block; position: fixed; 45px; text-align: right; right: 0; padding-right: 16px; top: 4px;}
.pace .pace-progress[data-progress-text="0%"]:after { right: -200px }.pace .pace-progress[data-progress-text="1%"]:after { right: -198.14px }.pace .pace-progress[data-progress-text="2%"]:after { right: -196.28px }.pace .pace-progress[data-progress-text="3%"]:after { right: -194.42px }.pace .pace-progress[data-progress-text="4%"]:after { right: -192.56px }.pace .pace-progress[data-progress-text="5%"]:after { right: -190.7px }.pace .pace-progress[data-progress-text="6%"]:after { right: -188.84px }.pace .pace-progress[data-progress-text="7%"]:after { right: -186.98px }.pace .pace-progress[data-progress-text="8%"]:after { right: -185.12px }.pace .pace-progress[data-progress-text="9%"]:after { right: -183.26px }.pace .pace-progress[data-progress-text="10%"]:after { right: -181.4px }.pace .pace-progress[data-progress-text="11%"]:after { right: -179.54px }.pace .pace-progress[data-progress-text="12%"]:after { right: -177.68px }.pace .pace-progress[data-progress-text="13%"]:after { right: -175.82px }.pace .pace-progress[data-progress-text="14%"]:after { right: -173.96px }.pace .pace-progress[data-progress-text="15%"]:after { right: -172.1px }.pace .pace-progress[data-progress-text="16%"]:after { right: -170.24px }.pace .pace-progress[data-progress-text="17%"]:after { right: -168.38px }.pace .pace-progress[data-progress-text="18%"]:after { right: -166.52px }.pace .pace-progress[data-progress-text="19%"]:after { right: -164.66px }.pace .pace-progress[data-progress-text="20%"]:after { right: -162.8px }.pace .pace-progress[data-progress-text="21%"]:after { right: -160.94px }.pace .pace-progress[data-progress-text="22%"]:after { right: -159.08px }.pace .pace-progress[data-progress-text="23%"]:after { right: -157.22px }.pace .pace-progress[data-progress-text="24%"]:after { right: -155.36px }.pace .pace-progress[data-progress-text="25%"]:after { right: -153.5px }.pace .pace-progress[data-progress-text="26%"]:after { right: -151.64px }.pace .pace-progress[data-progress-text="27%"]:after { right: -149.78px }.pace .pace-progress[data-progress-text="28%"]:after { right: -147.92px }.pace .pace-progress[data-progress-text="29%"]:after { right: -146.06px }.pace .pace-progress[data-progress-text="30%"]:after { right: -144.2px }.pace .pace-progress[data-progress-text="31%"]:after { right: -142.34px }.pace .pace-progress[data-progress-text="32%"]:after { right: -140.48px }.pace .pace-progress[data-progress-text="33%"]:after { right: -138.62px }.pace .pace-progress[data-progress-text="34%"]:after { right: -136.76px }.pace .pace-progress[data-progress-text="35%"]:after { right: -134.9px }.pace .pace-progress[data-progress-text="36%"]:after { right: -133.04px }.pace .pace-progress[data-progress-text="37%"]:after { right: -131.18px }.pace .pace-progress[data-progress-text="38%"]:after { right: -129.32px }.pace .pace-progress[data-progress-text="39%"]:after { right: -127.46px }.pace .pace-progress[data-progress-text="40%"]:after { right: -125.6px }.pace .pace-progress[data-progress-text="41%"]:after { right: -123.74px }.pace .pace-progress[data-progress-text="42%"]:after { right: -121.88px }.pace .pace-progress[data-progress-text="43%"]:after { right: -120.02px }.pace .pace-progress[data-progress-text="44%"]:after { right: -118.16px }.pace .pace-progress[data-progress-text="45%"]:after { right: -116.3px }.pace .pace-progress[data-progress-text="46%"]:after { right: -114.44px }.pace .pace-progress[data-progress-text="47%"]:after { right: -112.58px }.pace .pace-progress[data-progress-text="48%"]:after { right: -110.72px }.pace .pace-progress[data-progress-text="49%"]:after { right: -108.86px }.pace .pace-progress[data-progress-text="50%"]:after { right: -107px }.pace .pace-progress[data-progress-text="51%"]:after { right: -105.14px }.pace .pace-progress[data-progress-text="52%"]:after { right: -103.28px }.pace .pace-progress[data-progress-text="53%"]:after { right: -101.42px }.pace .pace-progress[data-progress-text="54%"]:after { right: -99.56px }.pace .pace-progress[data-progress-text="55%"]:after { right: -97.7px }.pace .pace-progress[data-progress-text="56%"]:after { right: -95.84px }.pace .pace-progress[data-progress-text="57%"]:after { right: -93.98px }.pace .pace-progress[data-progress-text="58%"]:after { right: -92.12px }.pace .pace-progress[data-progress-text="59%"]:after { right: -90.26px }.pace .pace-progress[data-progress-text="60%"]:after { right: -88.4px }.pace .pace-progress[data-progress-text="61%"]:after { right: -86.53999999999999px }.pace .pace-progress[data-progress-text="62%"]:after { right: -84.68px }.pace .pace-progress[data-progress-text="63%"]:after { right: -82.82px }.pace .pace-progress[data-progress-text="64%"]:after { right: -80.96000000000001px }.pace .pace-progress[data-progress-text="65%"]:after { right: -79.1px }.pace .pace-progress[data-progress-text="66%"]:after { right: -77.24px }.pace .pace-progress[data-progress-text="67%"]:after { right: -75.38px }.pace .pace-progress[data-progress-text="68%"]:after { right: -73.52px }.pace .pace-progress[data-progress-text="69%"]:after { right: -71.66px }.pace .pace-progress[data-progress-text="70%"]:after { right: -69.8px }.pace .pace-progress[data-progress-text="71%"]:after { right: -67.94px }.pace .pace-progress[data-progress-text="72%"]:after { right: -66.08px }.pace .pace-progress[data-progress-text="73%"]:after { right: -64.22px }.pace .pace-progress[data-progress-text="74%"]:after { right: -62.36px }.pace .pace-progress[data-progress-text="75%"]:after { right: -60.5px }.pace .pace-progress[data-progress-text="76%"]:after { right: -58.64px }.pace .pace-progress[data-progress-text="77%"]:after { right: -56.78px }.pace .pace-progress[data-progress-text="78%"]:after { right: -54.92px }.pace .pace-progress[data-progress-text="79%"]:after { right: -53.06px }.pace .pace-progress[data-progress-text="80%"]:after { right: -51.2px }.pace .pace-progress[data-progress-text="81%"]:after { right: -49.34px }.pace .pace-progress[data-progress-text="82%"]:after { right: -47.480000000000004px }.pace .pace-progress[data-progress-text="83%"]:after { right: -45.62px }.pace .pace-progress[data-progress-text="84%"]:after { right: -43.76px }.pace .pace-progress[data-progress-text="85%"]:after { right: -41.9px }.pace .pace-progress[data-progress-text="86%"]:after { right: -40.04px }.pace .pace-progress[data-progress-text="87%"]:after { right: -38.18px }.pace .pace-progress[data-progress-text="88%"]:after { right: -36.32px }.pace .pace-progress[data-progress-text="89%"]:after { right: -34.46px }.pace .pace-progress[data-progress-text="90%"]:after { right: -32.6px }.pace .pace-progress[data-progress-text="91%"]:after { right: -30.740000000000002px }.pace .pace-progress[data-progress-text="92%"]:after { right: -28.880000000000003px }.pace .pace-progress[data-progress-text="93%"]:after { right: -27.02px }.pace .pace-progress[data-progress-text="94%"]:after { right: -25.16px }.pace .pace-progress[data-progress-text="95%"]:after { right: -23.3px }.pace .pace-progress[data-progress-text="96%"]:after { right: -21.439999999999998px }.pace .pace-progress[data-progress-text="97%"]:after { right: -19.58px }.pace .pace-progress[data-progress-text="98%"]:after { right: -17.72px }.pace .pace-progress[data-progress-text="99%"]:after { right: -15.86px }.pace .pace-progress[data-progress-text="100%"]:after { right: -14px }

.pace .pace-activity { position: absolute; 100%; height: 28px; z-index: 2001; box-shadow: inset 0 0 0 2px #29d, inset 0 0 0 7px #FFF; border-radius: 10px;}
.pace.pace-inactive { display: none;}

Center Circle
.pace { -webkit-pointer-events: none; pointer-events: none;
-webkit-user-select: none; -moz-user-select: none; user-select: none;
-webkit-perspective: 12rem; -moz-perspective: 12rem; -ms-perspective: 12rem; -o-perspective: 12rem; perspective: 12rem;
z-index: 2000; position: fixed; height: 6rem; 6rem; margin: auto; top: 0; left: 0; right: 0; bottom: 0;}
.pace.pace-inactive .pace-progress { display: none;}
.pace .pace-progress { position: fixed; z-index: 2000; display: block; position: absolute; left: 0; top: 0; height: 6rem; 6rem !important; line-height: 6rem; font-size: 2rem; border-radius: 50%; background: rgba(34, 153, 221, 0.8); color: #fff; font-family: "Helvetica Neue", sans-serif; font-weight: 100; text-align: center;
-webkit-animation: pace-theme-center-circle-spin linear infinite 2s; -moz-animation: pace-theme-center-circle-spin linear infinite 2s; -ms-animation: pace-theme-center-circle-spin linear infinite 2s; -o-animation: pace-theme-center-circle-spin linear infinite 2s; animation: pace-theme-center-circle-spin linear infinite 2s;
-webkit-transform-style: preserve-3d; -moz-transform-style: preserve-3d; -ms-transform-style: preserve-3d; -o-transform-style: preserve-3d; transform-style: preserve-3d;}
.pace .pace-progress:after { content: attr(data-progress-text); display: block;}
@-webkit-keyframes pace-theme-center-circle-spin { from { -webkit-transform: rotateY(0deg) } to { -webkit-transform: rotateY(360deg) }}
@-moz-keyframes pace-theme-center-circle-spin { from { -moz-transform: rotateY(0deg) } to { -moz-transform: rotateY(360deg) }}
@-ms-keyframes pace-theme-center-circle-spin { from { -ms-transform: rotateY(0deg) } to { -ms-transform: rotateY(360deg) }}
@-o-keyframes pace-theme-center-circle-spin { from { -o-transform: rotateY(0deg) } to { -o-transform: rotateY(360deg) }}
@keyframes pace-theme-center-circle-spin { from { transform: rotateY(0deg) } to { transform: rotateY(360deg) }}

Center Atom
.pace.pace-inactive { display: none;}
.pace { -webkit-pointer-events: none; pointer-events: none;
-webkit-user-select: none; -moz-user-select: none; user-select: none;
z-index: 2000; position: fixed; height: 60px; 100px; margin: auto; top: 0; left: 0; right: 0; bottom: 0;}
.pace .pace-progress { z-index: 2000; position: absolute; height: 60px; 100px;
-webkit-transform: translate3d(0, 0, 0) !important; -ms-transform: translate3d(0, 0, 0) !important; transform: translate3d(0, 0, 0) !important;}
.pace .pace-progress:before { content: attr(data-progress-text); text-align: center; color: #fff; background: #29d; border-radius: 50%; font-family: "Helvetica Neue", sans-serif; font-size: 14px; font-weight: 100; line-height: 1; padding: 20% 0 7px; 50%; height: 40%; margin: 10px 0 0 30px; display: block; z-index: 999; position: absolute;}
.pace .pace-activity { font-size: 15px; line-height: 1; z-index: 2000; position: absolute; height: 60px; 100px;
display: block; -webkit-animation: pace-theme-center-atom-spin 2s linear infinite; -moz-animation: pace-theme-center-atom-spin 2s linear infinite; -o-animation: pace-theme-center-atom-spin 2s linear infinite; animation: pace-theme-center-atom-spin 2s linear infinite;}
.pace .pace-activity { border-radius: 50%; border: 5px solid #29d; content: ' '; display: block; position: absolute; top: 0; left: 0; height: 60px; 100px;}
.pace .pace-activity:after { border-radius: 50%; border: 5px solid #29d; content: ' '; display: block; position: absolute; top: -5px; left: -5px; height: 60px; 100px;
-webkit-transform: rotate(60deg); -moz-transform: rotate(60deg); -o-transform: rotate(60deg); transform: rotate(60deg);}
.pace .pace-activity:before { border-radius: 50%; border: 5px solid #29d; content: ' '; display: block; position: absolute; top: -5px; left: -5px; height: 60px; 100px;
-webkit-transform: rotate(120deg); -moz-transform: rotate(120deg); -o-transform: rotate(120deg); transform: rotate(120deg);}
@-webkit-keyframes pace-theme-center-atom-spin { 0% { -webkit-transform: rotate(0deg) } 100% { -webkit-transform: rotate(359deg) }}@-moz-keyframes pace-theme-center-atom-spin { 0% { -moz-transform: rotate(0deg) } 100% { -moz-transform: rotate(359deg) }}@-o-keyframes pace-theme-center-atom-spin { 0% { -o-transform: rotate(0deg) } 100% { -o-transform: rotate(359deg) }}@keyframes pace-theme-center-atom-spin { 0% { transform: rotate(0deg) } 100% { transform: rotate(359deg) }}

Center Radar
.pace { -webkit-pointer-events: none; pointer-events: none;
-webkit-user-select: none; -moz-user-select: none; user-select: none;
z-index: 2000; position: fixed; height: 90px; 90px; margin: auto; top: 0; left: 0; right: 0; bottom: 0;}
.pace.pace-inactive .pace-activity { display: none;}
.pace .pace-activity { position: fixed; z-index: 2000; display: block; position: absolute; left: -30px; top: -30px; height: 90px; 90px; display: block; border- 30px; border-style: double; border-color: #29d transparent transparent; border-radius: 50%;
-webkit-animation: spin 1s linear infinite; -moz-animation: spin 1s linear infinite; -o-animation: spin 1s linear infinite; animation: spin 1s linear infinite;}
.pace .pace-activity:before { content: ' '; position: absolute; top: 10px; left: 10px; height: 50px; 50px; display: block; border- 10px; border-style: solid; border-color: #29d transparent transparent; border-radius: 50%;}
@-webkit-keyframes spin { 100% { -webkit-transform: rotate(359deg); }}
@-moz-keyframes spin { 100% { -moz-transform: rotate(359deg); }}
@-o-keyframes spin { 100% { -moz-transform: rotate(359deg); }}
@keyframes spin { 100% { transform: rotate(359deg); }}

Center Simple

.pace { -webkit-pointer-events: none; pointer-events: none;
-webkit-user-select: none; -moz-user-select: none; user-select: none;
z-index: 2000; position: fixed; margin: auto; top: 0; left: 0; right: 0; bottom: 0; height: 5px; 200px; background: #fff; border: 1px solid #29d;
overflow: hidden;}
.pace .pace-progress { -webkit-box-sizing: border-box; -moz-box-sizing: border-box; -ms-box-sizing: border-box; -o-box-sizing: border-box; box-sizing: border-box;
-webkit-transform: translate3d(0, 0, 0); -moz-transform: translate3d(0, 0, 0); -ms-transform: translate3d(0, 0, 0); -o-transform: translate3d(0, 0, 0); transform: translate3d(0, 0, 0);
max- 200px; position: fixed; z-index: 2000; display: block; position: absolute; top: 0; right: 100%; height: 100%; 100%; background: #29d;}
.pace.pace-inactive { display: none;}