面包屑导航不是按分类进行，而是有一个层级关系。
效果图如下：
<style type="text/css">
ul {list-style: none;}
ul li a {
float: left;
margin-right: 30px;
display: inline-block;
position: relative;
height: 30px;
padding: 10px 20px 0 20px;
text-align: center;
text-decoration: none;
color: #fff;
font-size: 20px;
background: #3498db;
}
li a:after {
content: "";
border-left: 20px solid #3498db;
border-top: 20px solid transparent;
border-bottom: 20px solid transparent;
position: absolute;
right: -20px;
top: 0;
}
li a:before {
content: "";
border-left: 20px solid transparent;
border-top: 20px solid #3498db;
border-bottom: 20px solid #3498db;
position: absolute;
left: -20px;
top: 0;
}
ul li:first-child a {
border-top-left-radius: 10px;
border-bottom-left-radius: 10px;
}
ul li:first-child a:before {
display: none;
}
ul li:last-child a {
border-top-right-radius: 10px;
border-bottom-right-radius: 10px;
}
ul li:last-child a:after {
display: none;
}
li a:hover {
background: #fa5ba5;
}
li a:hover:after {
border-left-color: #fa5ba5;
}
li a:hover:before {
border-top-color: #fa5ba5;
border-bottom-color: #fa5ba5;
}
</style>
<body> <ul> <li><a href="#">中国</a></li> <li><a href="#">北京</a></li> <li><a href="#">天安门</a></li> <li><a href="#">升旗仪式</a></li> </ul> </body>
demo参考于此链接： 面包屑导航