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<!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>无标题文档</title>
<style type="text/css">
@-webkit-keyframes bounce-down {
25% {
-webkit-transform: translateY(-10px);
}
50%, 100% {
-webkit-transform: translateY(0);
}
75% {
-webkit-transform: translateY(10px);
}
}
@keyframes bounce-down {
25% {
transform: translateY(-10px);
}
50%, 100% {
transform: translateY(0);
}
75% {
transform: translateY(10px);
}
}
.animate-bounce-down{ background:#333; width: 100px; height: 100px; margin:100px auto;
-webkit-animation: bounce-down 1.5s linear infinite;
animation: bounce-down 1.5s linear infinite;
}
@-webkit-keyframes bounce-up {
25% {
-webkit-transform: translateY(10px);
}
50%, 100% {
-webkit-transform: translateY(0);
}
75% {
-webkit-transform: translateY(-10px);
}
}
@keyframes bounce-up {
25% {
transform: translateY(10px);
}
50%, 100% {
transform: translateY(0);
}
75% {
transform: translateY(-10px);
}
}
.animate-bounce-up{ background:#ddd; width: 100px; height: 100px; margin:100px auto;
-webkit-animation: bounce-up 1.4s linear infinite;
animation: bounce-up 1.4s linear infinite;
}
</style>
</head>
<body>
<div class="animate-bounce-up"></div>
<div class="animate-bounce-down"></div>
</body>
</html>
这个例子是直接应用css3来控制div层上下来回滚动;
这需要熟练应用@keyframes 规则,@keyframes bounce-down中的bounce-down是个动作名称,这个元素可以自行定义,只要在 animation: bounce-up匹配到就可以的。
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原文地址:http://www.cnblogs.com/wangyongx/p/5022529.html