纯CSS3制作的面包屑导航代码
这里总共有四种面包屑效果:
第一种运用:before和:after，运用border生成同等大小的尖角，叠加起来左右错动1px；
第二个还是运用:before和:after，运用border生成不同的尖角，一个在左一个在右；
第三个是运用一个:after生成一个正方形，设置border-radius然后rotate旋转45度；
第四个直接运用水平扭曲就skewX就可以了。
<!DOCTYPE html>
<html>
<head>
<title>CSS3 breadcrumbs - demo</title>
<style>
html{
background: #333;
}
body{
font: normal 14px Arial, Helvetica;
width: 920px;
margin: 100px auto;
color: #444;
background: #fff;
padding: 40px;
-moz-border-radius: 15px;
-webkit-border-radius: 15px;
border-radius: 15px;
}
a{
color: #777;
}
/* ------------------------------------------- */
ul{
margin: 0;
padding: 0;
list-style: none;
}
/* ------------------------------------------- */
#breadcrumbs-one{
background: #eee;
border-width: 1px;
border-style: solid;
border-color: #f5f5f5 #e5e5e5 #ccc;
-moz-border-radius: 5px;
-webkit-border-radius: 5px;
border-radius: 5px;
-moz-box-shadow: 0 0 2px rgba(0,0,0,.2);
-webkit-box-shadow: 0 0 2px rgba(0,0,0,.2);
box-shadow: 0 0 2px rgba(0,0,0,.2);
/* Clear floats */
overflow: hidden;
width: 100%;
}
#breadcrumbs-one li{
float: left;
}
#breadcrumbs-one a{
padding: .7em 1em .7em 2em;
float: left;
text-decoration: none;
color: #444;
position: relative;
text-shadow: 0 1px 0 rgba(255,255,255,.5);
background-color: #ddd;
background-image: -webkit-gradient(linear, left top, right bottom, from(#f5f5f5), to(#ddd));
background-image: -webkit-linear-gradient(left, #f5f5f5, #ddd);
background-image: -moz-linear-gradient(left, #f5f5f5, #ddd);
background-image: -ms-linear-gradient(left, #f5f5f5, #ddd);
background-image: -o-linear-gradient(left, #f5f5f5, #ddd);
background-image: linear-gradient(to right, #f5f5f5, #ddd);
}
#breadcrumbs-one li:first-child a{
padding-left: 1em;
-moz-border-radius: 5px 0 0 5px;
-webkit-border-radius: 5px 0 0 5px;
border-radius: 5px 0 0 5px;
}
#breadcrumbs-one a:hover{
background: #fff;
}
#breadcrumbs-one a::after,
#breadcrumbs-one a::before{
content: "";
position: absolute;
top: 50%;
margin-top: -1.5em;
border-top: 1.5em solid transparent;
border-bottom: 1.5em solid transparent;
border-left: 1em solid;
right: -1em;
}
#breadcrumbs-one a::after{
z-index: 2;
border-left-color: #ddd;
}
#breadcrumbs-one a::before{
border-left-color: #ccc;
right: -1.1em;
z-index: 1;
}
#breadcrumbs-one a:hover::after{
border-left-color: #fff;
}
#breadcrumbs-one .current,
#breadcrumbs-one .current:hover{
font-weight: bold;
background: none;
}
#breadcrumbs-one .current::after,
#breadcrumbs-one .current::before{
content: normal;
}
/*-----------------------------------*/
#breadcrumbs-two{
/* Clear floats */
overflow: hidden;
width: 100%;
}
#breadcrumbs-two li{
float: left;
margin: 0 .5em 0 1em;
}
#breadcrumbs-two a{
background: #ddd;
padding: .7em 1em;
float: left;
text-decoration: none;
color: #444;
text-shadow: 0 1px 0 rgba(255,255,255,.5);
position: relative;
}
#breadcrumbs-two a:hover{
background: #99db76;
}
#breadcrumbs-two a::before{
content: "";
position: absolute;
top: 50%;
margin-top: -1.5em;
border-width: 1.5em 0 1.5em 1em;
border-style: solid;
border-color: #ddd #ddd #ddd transparent;
left: -1em;
}
#breadcrumbs-two a:hover::before{
border-color: #99db76 #99db76 #99db76 transparent;
}
#breadcrumbs-two a::after{
content: "";
position: absolute;
top: 50%;
margin-top: -1.5em;
border-top: 1.5em solid transparent;
border-bottom: 1.5em solid transparent;
border-left: 1em solid #ddd;
right: -1em;
}
#breadcrumbs-two a:hover::after{
border-left-color: #99db76;
}
#breadcrumbs-two .current,
#breadcrumbs-two .current:hover{
font-weight: bold;
background: none;
}
#breadcrumbs-two .current::after,
#breadcrumbs-two .current::before{
content: normal;
}
/* ------------------------------------------- */
#breadcrumbs-three{
/* Clear floats */
overflow: hidden;
width: 100%;
}
#breadcrumbs-three li{
float: left;
margin: 0 2em 0 0;
}
#breadcrumbs-three a{
padding: .7em 1em .7em 2em;
float: left;
text-decoration: none;
color: #444;
background: #ddd;
position: relative;
z-index: 1;
text-shadow: 0 1px 0 rgba(255,255,255,.5);
-moz-border-radius: .4em 0 0 .4em;
-webkit-border-radius: .4em 0 0 .4em;
border-radius: .4em 0 0 .4em;
}
#breadcrumbs-three a:hover{
background: #abe0ef;
}
#breadcrumbs-three a::after{
background: #ddd;
content: "";
height: 2.5em;
margin-top: -1.25em;
position: absolute;
right: -1em;
top: 50%;
width: 2.5em;
z-index: -1;
-webkit-transform: rotate(45deg);
-moz-transform: rotate(45deg);
-ms-transform: rotate(45deg);
-o-transform: rotate(45deg);
transform: rotate(45deg);
-moz-border-radius: .4em;
-webkit-border-radius: .4em;
border-radius: .4em;
}
#breadcrumbs-three a:hover::after{
background: #abe0ef;
}
#breadcrumbs-three .current,
#breadcrumbs-three .current:hover{
font-weight: bold;
background: none;
}
#breadcrumbs-three .current::after{
content: normal;
}
/* ------------------------------------------- */
#breadcrumbs-four{
/* Clear floats */
overflow: hidden;
width: 100%;
}
#breadcrumbs-four li{
float: left;
margin: 0 .5em 0 1em;
}
#breadcrumbs-four a{
background: #ddd;
padding: .7em 1em;
float: left;
text-decoration: none;
color: #444;
text-shadow: 0 1px 0 rgba(255,255,255,.5);
position: relative;
}
#breadcrumbs-four a:hover{
background: #efc9ab;
}
#breadcrumbs-four a::before,
#breadcrumbs-four a::after{
content:'';
position:absolute;
top: 0;
bottom: 0;
width: 1em;
background: #ddd;
-webkit-transform: skew(-10deg);
-moz-transform: skew(-10deg);
-ms-transform: skew(-10deg);
-o-transform: skew(-10deg);
transform: skew(-10deg);
}
#breadcrumbs-four a::before{
left: -.5em;
-webkit-border-radius: 5px 0 0 5px;
-moz-border-radius: 5px 0 0 5px;
border-radius: 5px 0 0 5px;
}
#breadcrumbs-four a:hover::before{
background: #efc9ab;
}
#breadcrumbs-four a::after{
right: -.5em;
-webkit-border-radius: 0 5px 5px 0;
-moz-border-radius: 0 5px 5px 0;
border-radius: 0 5px 5px 0;
}
#breadcrumbs-four a:hover::after{
background: #efc9ab;
}
#breadcrumbs-four .current,
#breadcrumbs-four .current:hover{
font-weight: bold;
background: none;
}
#breadcrumbs-four .current::after,
#breadcrumbs-four .current::before{
content: normal;
}
</style>
</head>
<body>
<ul id="breadcrumbs-one">
<li><a href="">Lorem ipsum</a></li>
<li><a href="">Vivamus nisi eros</a></li>
<li><a href="">Nulla sed lorem risus</a></li>
<li><a href="">Nam iaculis commodo</a></li>
<li><a href="" class="current">Current crumb</a></li>
</ul>
<br><br><br>
<ul id="breadcrumbs-two">
<li><a href="">Lorem ipsum</a></li>
<li><a href="">Vivamus nisi eros</a></li>
<li><a href="">Nulla sed lorem risus</a></li>
<li><a href="">Nam iaculis commodo</a></li>
<li><a href="" class="current">Current crumb</a></li>
</ul>
<br><br><br>
<ul id="breadcrumbs-three">
<li><a href="">Lorem ipsum</a></li>
<li><a href="">Vivamus nisi eros</a></li>
<li><a href="">Nulla sed lorem risus</a></li>
<li><a href="">Nam iaculis commodo</a></li>
<li><a href="" class="current">Current crumb</a></li>
</ul>
<br><br><br>
<ul id="breadcrumbs-four">
<li><a href="">Lorem ipsum</a></li>
<li><a href="">Vivamus nisi eros</a></li>
<li><a href="">Nulla sed lorem risus</a></li>
<li><a href="">Nam iaculis commodo</a></li>
<li><a href="" class="current">Current crumb</a></li>
</ul>
</body>
</html>