1.jquery处理
<div class="parent">
<a href=""class="child"></a>
</div>
<div class="parent">
<a href=""class="child"></a>
</div>
<div class="parent">
<a href=""class="child"></a>
</div>
.parent{ position: relative;}
.child{position:absolute;z-index:1;}
.child:hover{z-index:2;}
处理方法:jquery;
$(".parent").on('mouseover',function(){ $(this).css('z-index','999'); });
$(".parent").on('mouseout',function(){</span> $(this).css('z-index','0'); });