absolute元素高度

by zicai

HTML

<!--当absolute容器高度小于内容高度时，必须设置overflow:hidden  -->
<div class="wrapper">sdfsf
    <div class="inner"></div>
</div>

CSS

.wrapper{
    position:absolute;
    top:0;
    left:0;
    background:red;
    height:0px;
    width:100px;
    /* overflow:hidden; */
}
.inner{
    height:200px;
    width:50px;
    background-color:yellow;
}