这是一个简单的HTML文档,演示如何通过CSS实现它.
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<style>
.b1f, .b2f, .b3f, .b4f{font-size:1px; overflow:hidden; display:block;}
.b1f {height:1px; background:#ddd; margin:0 5px;}
.b2f {height:1px; background:#ddd; margin:0 3px;}
.b3f {height:1px; background:#ddd; margin:0 2px;}
.b4f {height:2px; background:#ddd; margin:0 1px;}
.contentf {background: #ddd;}
.contentf div {margin-left: 5px;}
</style>
</head>
<body>
<b class="b1f"></b><b class="b2f"></b><b class="b3f"></b><b class="b4f"></b>
<div class="contentf">
Content Area Content Area Content Area Content Area Content Area Content Area
Content Area Content Area Content Area Content Area Content Area Content Area
Content Area Content Area Content Area Content Area Content Area Content Area
</div>
<b class="b4f"></b><b class="b3f"></b><b class="b2f"></b><b class="b1f"></b>
</body>
</html>
链接到原文:http://blog.yosle.com/2007/09/20/css-round-corners/