<html>
<head>
<meta charset="utf-8">
<title>CSS3圆形风格面包屑导航</title>
<link rel="stylesheet" type="text/css" href="http://css.h5course.cn/reset.css" />
<style type="text/css">
html, body {
height: 100%;
padding: 0 100px;
background-color: #59a386;
}
.title {
padding: 50px 0;
color: #77c2a5;
font-size: 25px;
font-weight: bold;
}
ul.breadcrumb {
display: inline-block;
margin-left: 50px;
}
/*实现每个导航项的基本样式*/
ul.breadcrumb li {
float: right;
padding: 5px;
margin: 3px 0 0 -50px;
background-color: #59a386;
border-radius: 50px;
transition: all 0.2s linear 0s;
}
ul.breadcrumb li a {
display: block;
overflow: hidden;
min-width: 50px;
width: 50px;
height: 50px;
padding: 0 33.33px 0 52px;
color: #509378;
background-color: #65ba99;
text-align: center;
line-height: 50px;
border-radius: 50px;
transition: all 0.2s linear 0s;
box-sizing: border-box;
}
/*控制每个导航项中文本的出现*/
ul.breadcrumb li a .text {
display: none;
opacity: 0;
}
ul.breadcrumb li a:hover {
width: 150px;
background-color: #77c2a5;
}
ul.breadcrumb li a:hover .text {
display: inline-block;
opacity: 1;
}
/*处理第一个导航项*/
ul.breadcrumb li:last-child a {
padding: 0;
}
ul.breadcrumb li:last-child:hover {
padding: 3px;
margin-top: 0;
}
ul.breadcrumb li:last-child:hover a {
width: 60px;
height: 60px;
line-height: 60px;
}
</style>
</head>
<body>
<h1 class="title">CSS3圆形风格面包屑导航</h1>
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原文：http://www.cnblogs.com/WhiteHorseIsNotHorse/p/6414200.html