复制代码代码如下:
<style>
.b{
position: absolute;
z-index: 2;
width: 0;
height: 0;
line-height: 0;
font-size: 0;
border-width: 5px;
border-style: solid;
border-color: #666 #fff #fff #fff;
top: 13px;
left: 40px;
}
.demo{
position: relative;
display: inline-block;
vertical-align: middle;
z-index: 0;
height: 32px;
line-height: 32px;
cursor: pointer;
}
</style>
<span class='demo'>
南京
<b class='b'></b>
</span>