设置div元素中的div元素居中显示
div class='big2'> <div class='small2'>box3</div> </div> .big2{ height:200px; width:200px; border:black solid 1px; text-align:center; } .small2{ height:100px; width:100px; background-color:green; margin:50px auto; //外面的div高度的一半 border:black solid 1px; }
<div class='big'> <div class='small'>box1</div> </div> style样式: .big{ height:200px; width:200px; border:black solid 1px; position:absolute; left:150px; } .small{ height:100px; width:100px; background-color:green; position:relative; left:100px; top:100px; margin-top:-50px; margin-left:-50px; border:black solid 1px; }