html5网站常用动画样式，css3实现
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>css3页面动画</title>
<style>
html,body,.maibody{
width: 100%;
height: 100%;
position: relative;
overflow: hidden;
background:#dcdcdc;
color: #ffffff;
text-align: center;
line-height: 200px;
}
.float1{
width: 200px;
height: 200px;
background: orange;
animation:upquick 1s;
position: absolute;
left: 30%;
top:100px;
}
@keyframes upquick
{
0% {top: 1000px;}
100% {top:100px; }
}
.float2{
width: 800px;
height: 200px;
position: absolute;
right: 0;
bottom: 0;
background: green;
animation:upslow 3s;
}
@keyframes upslow
{
0% {bottom: -250px;}
100% {bottom: 0;}
}
.float3{
width: 200px;
position: absolute;
height: 200px;
bottom: 0;
background: blue;
animation:rightmid 2s;
}
@keyframes rightmid
{
0% {left: -250px;}
100% {left: 0;}
}
</style>
</head>
<body>
<div class="maibody">
<div class="float1">快速向上</div>
<div class="float2">慢速向上</div>
<div class="float3">中速向右</div>
</div>
</body>
</html>
