不用animate滑动动画(div弹出层滑动效果)
-webkit-transition:all 0.2s ease-in-out;
-moz-transition:all 0.2s ease-in-out;
-o-transition:all 0.2s ease-in-out;
-ms-transition:all 0.2s ease-in-out;
-webkit-transition:all 0.2s ease-in-out;
-moz-transition:all 0.2s ease-in-out;
-o-transition:all 0.2s ease-in-out;
-ms-transition:all 0.2s ease-in-out;