<html lang="en">
<head>
<meta charset="UTF-8">
<title>顶部固定页 面内容部分可以滚动</title>
<style type="text/css">
body{margin: 0}
.header{position: absolute;width:100%;height: 100px;background: green;z-index: 999;opacity: 0.5;}
.empty{height: 100px;}
.scrollview{position: absolute;top: 0;bottom: 0;left: 0;right: 0;background: #ddd; overflow-y: scroll;}
.content{height: 1000px;width: 900px;background: #999;margin: 0 auto;}
</style>
</head>
<body>
<div class="header">顶部</div>
<div class="scrollview">
<div class="empty"></div>
<div class="content"></div>
</div>
</body>
</html>
