DIV纵向撑满父元素

<div class="parent" style="width: 100%; position: relative">

    <div class="left" style="position: absolute; top: 0; bottom: 0">1</div>

    <div class="right">12312312312121213</div>

</div>

 

要让内部的left div，纵向撑满父元素（height 100%）的效果，可以给父元素设置relative position，left设置absolute position, top 0, bottom 0;