如何覆盖在Ruby on Rails中实现CSS?
我一直在浏览一些关于Materialise在Rails上的帖子,但这个区域似乎很模糊。我目前正在使用materialize-sass宝石。
I've been looking through some posts on the internet about Materialize in Rails, however this area seems to be very fuzzy. I am currently using the materialize-sass gem.
我没有找到太多有用的帖子,我决定在这里度假。
I didn't find very many helpful posts, I decided to resort here.
这是我的一个页面的代码 pages / discover.html.erb
Here's my code for a page I have pages/discover.html.erb
<%= stylesheet_link_tag "https://fonts.googleapis.com/icon?family=Material+Icons" %>
<div class="row">
<div class="col s12 m5">
<div class="card">
<div class="card-image b">
<img src="http://i.huffpost.com/gen/1456585/images/o-CRAIG-COBB-facebook.jpg">
<span class="card-title">Cregg Cobb Is Back At It Again, But Only This Time He Has Guns</span>
</div>
<div class="card-content">
<p>I am a very simple card. I am good at containing small bits of information.
I am convenient because I require little markup to use effectively.</p>
</div>
<div class="card-action">
<div class="chip">
<img src="http://i.huffpost.com/gen/1456585/images/o-CRAIG-COBB-facebook.jpg" id="cobb">
Like
</div>
</div>
</div>
</div>
</div>
我想让< img>
使用 filter:brightness(50%);
I want to make the <img>
darker by using filter: brightness(50%);
我在哪里开始?
奖金:如果你知道我在哪里可以添加Materializecss.com在讨论组件和过渡时提到的jQuery的东西,将非常感谢! / p>
Bonus: If you know where I can add the jQuery stuff that Materializecss.com mentions when discussing components and transitions, it would be greatly appreciated!
因为它只是一个覆盖,你可以添加一个新的.css文件到资产),具有!重要的类:
Since it's just a single override, you could add a new .css file to assets (or wherever you're storing static stuff), with a !important class:
img.darker {
filter: brightness(50%) !important;
}
然后将其导入模板顶部:
Then import it at the top of your template:
<%= stylesheet_link_tag "/path/to/css.file" %>
并将类添加到图像标记中:
And add the class to your image tag:
<img src="/my/img.png" class="darker">
或者,您也可以单独设置图片标签的样式:
Alternatively you could just style the image tags individually:
<img src="/my/img.png" style="filter:brightness(50%)">