#slides {
-moz-transition: all 0.5s ease-in-out;
-webkit-transition: all 0.5s ease-in-out;
-ms-transition: height 0.5s ease-in-out;
-o-transition: all 0.5s ease-in-out;
transition: all 0.5s ease-in-out;
-webkit-overflow-scrolling: touch;
visibility: visible;
overflow: hidden;
height: calc(100vh - 5px);
}
发现在IE11中无法得到过度效果。
原因：IE中的BUG，无法对calc的属性作用效果
- http://caniuse.com/#search=transition
- https://connect.microsoft.com/IE/feedback/details/762719/css3-calc-bug-inside-transition-or-transform
解决办法：只能提前设置
