SS3仿Flash动画按钮效果，会动的下载按钮，鼠标放上后按钮向左拉开，像抽屉一样，按钮文字会自动被压缩，拉开后显示出其它信息，特别适合做下载的网站用。代码中原使用的字体为BebasNeue-webfont.ttf，这里我就不提供了，你可以自己定义字体。
<!DOCTYPE html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>纯CSS3超酷下载按钮效果</title>
<style>
@charset "utf-8";
::selection {
background-color: #55595c;
color: #fff;
text-shadow: 0 1px 0 #000;
}
::-moz-selection {
background-color: #55595c;
color: #fff;
text-shadow: 0 1px 0 #000;
}
@font-face {
font-family: 'BebasNeueRegular';
src: url('BebasNeue-webfont.eot');
src: local('?'), url('BebasNeue-webfont.ttf') format('truetype');
font-weight: normal;
font-style: normal;
}
html {
height: auto;
min-height: 100%;
}
body {
margin: 0px;
padding: 0px;
height: auto;
min-height: 100%;
text-align: center;
background: #242428;
background: -webkit-gradient(linear, 0 bottom, 0 top, from(#1f1f23 ), to(#29292d));
background: -moz-linear-gradient(-90deg, #29292d, #1f1f23 );
text-shadow: 0 -1px 0 #000;
}
#wrap {
width:500px;
margin:13% auto 0;
}
h1 {
color:#7c7c84;
font: bold 13px/19px Arial, Helvetica, san serif;
margin-bottom:30px;
}
#btn-wrap {
position:relative;
padding:5px;
margin:0 auto;
width:230px;
height:50px;
display:block;
text-decoration:none;
margin-bottom:30px;
background: #242428;
background: -webkit-gradient(linear, 0 bottom, 0 top, from(#2d2d30 ), to(#17171a));
background: -moz-linear-gradient(-90deg, #17171a, #2d2d30 );
-webkit-border-radius: 50px;
-moz-border-radius: 50px;
border-radius: 50px;
-webkit-box-shadow: 0 1px 0 #37373b;
-moz-box-shadow: 0 1px 0 #37373b;
box-shadow: 0 1px 0 #37373b;
}
span.title{
color:#d6d6e7;
font:30px/58px "BebasNeueRegular", Helvetica, Arial, sans-serif;
height:50px;
width:230px;
display:block;
position:relative;
-webkit-box-shadow: 0 -1px 0 #8d8d94, 0 1px 1px #0b0b0c;
-moz-box-shadow: 0 -1px 0 #8d8d94, 0 1px 1px #0b0b0c;
box-shadow: 0 -1px 0 #8d8d94, 0 1px 1px #0b0b0c;
background: #52525c;
background: -webkit-gradient(linear, 0 bottom, 0 top, from(#383840 ), to(#5a5a64));
background: -moz-linear-gradient(-90deg, #5a5a64, #383840 );
-webkit-border-radius: 50px;
-moz-border-radius: 50px;
border-radius: 50px;
z-index:5;
-webkit-transition:width .2s ease-out;
-moz-transition:width .2s ease-out;
-o-transition:width .2s ease-out;
}
#btn-wrap:hover span.title {
font-size:19px;
width:135px;
}
#info {
position:absolute;
height:50px;
width:230px;
top:5px;
right:4px;
-webkit-box-shadow: 0 -1px 0 #404042, 0 1px 1px #0b0b0c;
-moz-box-shadow: 0 -1px 0 #404042, 0 1px 1px #0b0b0c;
box-shadow: 0 -1px 0 #404042, 0 1px 1px #0b0b0c;
background: #2a2a2d;
background: -webkit-gradient(linear, 0 bottom, 0 top, from(#212124 ), to(#2a2a2d));
background: -moz-linear-gradient(-90deg, #2a2a2d, #212124 );
-webkit-border-radius: 50px;
-moz-border-radius: 50px;
border-radius: 50px;
z-index:4;
}
#info p {
width:65px;
margin:12px 17px 0 0;
position:absolute;
right:0;
color:#7c7c84;
font:11px/12px Helvetica, Arial, sans-serif;
text-align:left;
}
.boxtuffs {
color: #7c7c84;
font:12px Helvetica, Arial, sans-serif;
text-shadow: 0 -1px 0 #000;
text-decoration:none;
-webkit-transition:all .2s ease-out;
-moz-transition:all .2s ease-out;
-o-transition:all .2s ease-out;
}
.boxtuffs:hover {
color: #27896a;
}
</style>
</head>
<body>
<div id="wrap">
<h1>Pure CSS3 Download Button</h1>
<a href="" title="Download Me!" id="btn-wrap">
<span class="title">Download Me</span>
<div id="info"><p><strong>Version 1.1</strong><span>3.5 MB</span></p></div>
</a>
</body>
</html>
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