<!DOCTYPE HTML>
<html lang="en-US">
<head>
<meta charset="UTF-8">
<title>css3折叠下拉菜单DEMO演示</title>
<link rel="stylesheet" type="text/css" href="css/base.css" media="all" />
<style>
body {
background-color: #f2f2f2;
}
.box {
margin-top: 40px;
height: 85px;
border-bottom: 5px solid #fff;
background-color: #0dc2e3;
background-image: -webkit-linear-gradient(180deg, transparent 55%, #00bfe1 45%);
background-image: -o-linear-gradient(180deg, transparent 50%, #00bfe1 50%);
background-image: -ms-linear-gradient(180deg, transparent 50%, #00bfe1 50%);
background-image: linear-gradient(90deg, transparent 50%, #00bfe1 50%);
background-size: 30px 30px;
}
.menu {
width: 750px;
margin: 0 auto;
-webkit-perspective: 50px;
-moz-perspective: 50px;
-ms-perspective: 50px;
perspective: 50px;
}
.menu > li {
display: inline-block;
padding-top: 48px;
-webkit-transform-style: preserve-3d;
-moz-transform-style: preserve-3d;
-ms-transform-style: preserve-3d;
transform-style: preserve-3d;
}
.menu > li > a {
position: relative;
display: block;
line-height: 36px;
color: #fff;
font-weight: bold;
font-size: 20px;
padding: 0 20px;
}
.menu > li:first-child > a:before {
position: absolute;
left: 0;
top: 36px;
content: '';
width: 1px;
height: 1px;
border-width: 15px 30px;
border-style: solid;
border-color: transparent;
border-top-color: #4bb100;
}
.menu > li:first-child > a:after {
font-family: 'iconminia';
font-style: normal;
speak: none;
font-weight: normal;
-webkit-font-smoothing: antialiased;
font-size: 22px;
content: "\21";
}
.menu > li:first-child a,
.menu > li:first-child:hover > a,
.menu > li:first-child:hover a:hover {
color: #fff;
top: 2px;
height: 36px;
margin-right: 10px;
text-shadow: 0 1px 0 #3c8f00;
border-radius: 5px 5px 0 0;
box-shadow: 0 1px 0 #a6d980 inset;
background-color: #4bb100;
}
.menu > li:hover > a {
color: #1a89c8;
text-decoration: none;
border-radius: 5px 5px 0 0;
background-color: #fff;
}
.menu ul {
position: absolute;
text-align: left;
line-height: 40px;
font-size: 14px;
width: 200px;
background-color: #fff;
-webkit-transition: all 0.3s ease-in;
-moz-transition: all 0.3s ease-in;
-ms-transition: all 0.3s ease-in;
transition: all 0.3s ease-in;
-webkit-transform-origin: 0px 0px;
-moz-transform-origin: 0px 0px;
transform-origin: 0px 0px;
-webkit-transform: rotateX(-90deg);
-moz-transform: rotateX(-80deg);
transform: rotateX(-90deg);
-moz-backface-visibility: hidden;
-webkit-backface-visibility: hidden;
backface-visibility: hidden;
}
.menu ul a {
display: block;
padding: 0 15px 0 10px;
color: #1a89c8;
}
.menu > li:hover ul {
display: block;
-webkit-transform: rotateX(0deg);
-moz-transform: rotateX(0deg);
-ms-transform: rotateX(0deg);
transform: rotateX(0deg);
}
.menu ul a:hover {
color: #fff;
text-shadow: 0 1px 0 #1c71a1;
text-decoration: none;
background-color: #218bc7;
}
@font-face {
font-family: 'iconminia';
src:url('fonts/iconminia.eot');
src:url('fonts/iconminia.eot?#iefix') format('embedded-opentype'),
url('fonts/iconminia.svg#iconminia') format('svg'),
url('fonts/iconminia.woff') format('woff'),
url('fonts/iconminia.ttf') format('truetype');
font-weight: normal;
font-style: normal;
}
</style>
</head>
<body>
<div class="page">
<section class="demo">
<div class="box">
<ul class="menu">
<li><a href="#"></a></li>
<li><a href="#">About Me</a>
<ul>
<li><a href="#">Lorem ipsum dolor</a></li>
<li><a href="#">Maecenas lacinia sem</a></li>
<li><a href="#">Suspendisse fringilla</a></li>
</ul>
</li>
<li><a href="#">Portfolio</a>
<ul>
<li><a href="#">Lorem ipsum dolor</a></li>
<li><a href="#">Maecenas dignissim ..</a></li>
<li><a href="#">Suspendisse fringilla</a></li>
<li><a href="#">Lorem ipsum dolor</a></li>
<li><a href="#">Maecenas lacinia sem</a></li>
<li><a href="#">Suspendisse fringilla</a></li>
</ul>
</li>
<li><a href="#">Clients</a>
<ul>
<li><a href="#">Lorem ipsum dolor</a></li>
<li><a href="#">Maecenas lacinia sem</a></li>
<li><a href="#">Suspendisse fringilla</a></li>
</ul>
</li>
<li><a href="#">Contact Me</a>
<ul>
<li><a href="#">Lorem ipsum dolor</a></li>
<li><a href="#">Maecenas dignissim ..</a></li>
<li><a href="#">Suspendisse fringilla</a></li>
</ul>
</li>
<li><a href="#">Support</a></li>
</ul>
</div>
</section><!-- /demo -->
</div>
<br><br><br><br><br><br><br><br><br><br>
<p class="source-url">来自：<a href="http://www.w3cplus.com/demo/css3-animation-menu.html" target="_blank" rel="nofollow">w3cplus.com</a> 作者：藤藤</p>
</body>
</html>
