标签：
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<link rel="stylesheet" href="css/style.css" media="screen" type="text/css" />
</head>
<body>
<div style="text-align: center; clear: both">
</div>
<ul>
<li class="block">
<input type="checkbox" name="item" id="item1" />
<label for="item1"><i aria-hidden="true" class="icon-users"></i>Friends </label>
<ul class="options">
<li><a href="htttp:www.baidu.com"><i aria-hidden="true" class="icon-search"></i>Find New Friends</a></li>
<li><a href="#"><i aria-hidden="true" class="icon-point-right"></i>Poke A Friend</a></li>
<li><a href="#"><i aria-hidden="true" class="icon-fire"></i>Incinerate Existing Friends</a></li>
</ul>
</li>
<li class="block">
<input type="checkbox" name="item" id="item2" />
<label for="item2"><i aria-hidden="true" class="icon-film"></i>Videos </label>
<ul class="options">
<li><a href="#"><i aria-hidden="true" class="icon-movie"></i>My Videos </a></li>
<li><a href="#"><i aria-hidden="true" class="icon-download"></i>My Downloaded Videos </a></li>
<li><a href="#"><i aria-hidden="true" class="icon-warning"></i>My Well Dodgy Videos </a></li>
</ul>
</li>
<li class="block">
<input type="checkbox" name="item" id="item3" />
<label for="item3"><i aria-hidden="true" class="icon-images"></i>Galleries </label>
<ul class="options">
<li><a href="#" target="_blank"><i aria-hidden="true" class="icon-deviantart"></i>My Deviant Art</a></li>
<li><a href="#" target="_blank"><i aria-hidden="true" class="icon-dribbble"></i>Latest Dribbble Images</a></li>
<li><a href="#" target="_blank"><i aria-hidden="true" class="icon-flickr"></i>Sample Flickr Stream</a></li>
<li><a href="#" target="_blank"><i aria-hidden="true" class="icon-picassa"></i>Sample Picasa Stream</a></li>
</ul>
</li>
<li class="block">
<input type="checkbox" name="item" id="item4" />
<label for="item4"><i aria-hidden="true" class="icon-microphone"></i>Podcasts </label>
<ul class="options">
<li><a href="#" target="_blank"><i aria-hidden="true" class="icon-music"></i>CSS-Tricks</a></li>
</ul>
</li>
<li class="block">
<input type="checkbox" name="item" id="item5" />
<label for="item5"><i aria-hidden="true" class="icon-android"></i>Robots </label>
<ul class="options">
<li><a href="#" target="_blank"><i aria-hidden="true" class="icon-eye"></i>Hal 9000</a></li>
<li><a href="#" target="_blank"><i aria-hidden="true" class="icon-cloud"></i>Skynet</a></li>
<li><a href="#" target="_blank"><i aria-hidden="true" class="icon-reddit"></i>Johnny 5</a></li>
</ul>
</li>
</ul>
</body>
</html>
CSS:
* {
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
box-sizing: border-box;
}
body {
font-family:arial, sans-serif;
font-weight:normal;
font-size:12px;
background:#3f4348 url(‘http://www.frecosse.com/workshop/accordion_menu/bg.png‘);
}
ul {
list-style:none;
margin:0;
padding:0;
width:300px;
margin:0 auto;
-moz-box-shadow: 0 0 5px #111;
-webkit-box-shadow: 0 0 5px #111;
box-shadow: 0 0 5px #111;
}
ul li label {
background: #575e63; /* fallback colour */
border-top:1px solid #878e98;
border-bottom:1px solid #33373d;
color: #fff;
text-shadow: 0 1px 1px #000;
letter-spacing: 0.09em;
background: -webkit-gradient(linear, 0% 0%, 0% 100%, from(#575e63), to(#3f4347));
background: -webkit-linear-gradient(top, #575e63, #3f4347);
background: -moz-linear-gradient(top, #575e63, #3f4347);
background: -ms-linear-gradient(top, #575e63, #3f4347);
background: -o-linear-gradient(top, #575e63, #3f4347);
}
ul li input[type=‘checkbox‘] {
display: none;
}
ul li label {
display:block;
padding:12px;
width:300px;
}
ul li i {
font-size:18px;
vertical-align: middle;
width:20px;
display:inline-block;
}
ul li span {
display:inline;
float:right;
background:#48515c;
border:1px solid #3c434c;
border-bottom:1px solid #707781;
padding:4px 6px;
font-size:10px;
-moz-border-radius: 12px;
border-radius: 12px;
-moz-box-shadow: inset 0 0 10px #111;
-webkit-box-shadow: inset 0 0 10px #111;
box-shadow: inner 0 0 10px #111;
position:relative;
}
ul li label:hover {
background: #566f82; /* fallback colour */
background: -webkit-gradient(linear, 0% 0%, 0% 100%, from(#566f82), to(#3e505e));
background: -webkit-linear-gradient(top, #566f82, #3e505e);
background: -moz-linear-gradient(top, #566f82, #3e505e);
background: -ms-linear-gradient(top, #566f82, #3e505e);
background: -o-linear-gradient(top, #566f82, #3e505e);
}
ul li label:hover span {
background:#3e505e;
}
ul li input[type=‘checkbox‘]:checked ~ label {
color:orange ;
background: #44c6eb; /* fallback colour */
border-top:1px solid #878e98;
border-bottom:1px solid #2799db;
background: -webkit-gradient(linear, 0% 0%, 0% 100%, from(#44c6eb), to(#2799db));
background: -webkit-linear-gradient(top, #44c6eb, #2799db);
background: -moz-linear-gradient(top, #44c6eb, #2799db);
background: -ms-linear-gradient(top, #44c6eb, #2799db);
background: -o-linear-gradient(top, #44c6eb, #2799db);
}
ul li input[type=‘checkbox‘]:checked ~ label span {
background: #2173a1; /* fallback colour */
border-top:1px solid #1b5f85;
border-bottom:1px solid #4cb1e4;
-moz-box-shadow: inset 0 0 5px #111;
-webkit-box-shadow: inset 0 0 5px #111;
box-shadow: inner 0 0 5px #111;
}
ul li input[type=‘checkbox‘]:checked ~ .options {
height: auto;
display:block;
min-height:40px;
max-height:400px;
}
ul ul {
background:#fff; margin:0; padding:0;
-moz-box-shadow: inset 0 2px 2px #b3b3b3;
-webkit-box-shadow: inset 0 2px 2px #b3b3b3;
box-shadow: inner 0 2px 2px #b3b3b3;
}
ul ul li a {
display:block;
padding:6px 12px;
color:#999;
text-decoration:none;
}
ul ul li a:hover {
color:#44c6eb;
}
ul ul li a span {
color:#999;
background:none;
border:1px solid #ccc;
-moz-box-shadow: none;
-webkit-box-shadow: none;
box-shadow: none;
}
ul ul li {
border-bottom:1px solid #ccc;
}
ul ul li:first-child {
padding-top:6px;
}
ul ul li:last-child {
padding-bottom:6px; border:0;
}
.options {
height: 0;
display: block;
overflow: hidden;
}
/* Abridged icomoon font styles
/* (Hosted on Frecosse - Please don‘t hotlink!)
===============================================
@font-face {
font-family: ‘icomoon‘;
src:url(‘http://www.frecosse.com/workshop/accordion_menu/icomoon.eot‘);
src:url(‘http://www.frecosse.com/workshop/accordion_menu/icomoon.eot?#iefix‘) format(‘embedded-opentype‘),
url(‘http://www.frecosse.com/workshop/accordion_menu/icomoon.woff‘) format(‘woff‘),
url(‘http://www.frecosse.com/workshop/accordion_menu/icomoon.ttf‘) format(‘truetype‘),
url(‘http://www.frecosse.com/workshop/accordion_menu/icomoon.svg#icomoon‘) format(‘svg‘);
font-weight: normal;
font-style: normal;
}
.icon-music:before, .icon-search:before, .icon-fire:before, .icon-dribbble:before, .icon-flickr:before, .icon-deviantart:before, .icon-picassa:before, .icon-reddit:before, .icon-android:before, .icon-users:before, .icon-film:before, .icon-eye:before, .icon-point-right:before, .icon-microphone:before, .icon-download:before, .icon-warning:before, .icon-images:before, .icon-movie:before, .icon-cloud:before {
font-family: ‘icomoon‘;
speak: none;
font-style: normal;
font-weight: normal;
line-height: 1;
-webkit-font-smoothing: antialiased;
}
.icon-music:before { content: "\61"; }
.icon-search:before { content: "\62"; }
.icon-fire:before { content: "\63"; }
.icon-dribbble:before { content: "\64"; }
.icon-flickr:before { content: "\65"; }
.icon-deviantart:before { content: "\66"; }
.icon-picassa:before { content: "\67"; }
.icon-reddit:before { content: "\68"; }
.icon-android:before { content: "\69"; }
.icon-users:before { content: "\6a"; }
.icon-film:before { content: "\6b"; }
.icon-eye:before { content: "\6c"; }
.icon-point-right:before { content: "\6d"; }
.icon-microphone:before { content: "\6e"; }
.icon-download:before { content: "\6f"; }
.icon-warning:before { content: "\70"; }
.icon-images:before { content: "\71"; }
.icon-movie:before { content: "\72"; }
.icon-cloud:before { content: "\73"; }*/
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原文地址：http://www.cnblogs.com/xiaobuild/p/4581907.html
