【图】使用CSS制作圆角效果

　　Web2.0中，圆角效果是很常见的，以前都是用图片来模仿，现在直接用css就能实现，例子代码如下

　　Html代码：

!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
html
head
titleUntitled Document/title
meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"
/head
　　
style type="text/css"
body{
padding: 20px;
background-color: #FFCC66;
font: 100.01% "Trebuchet MS", "Verdana", "Arial", "sans-serif";
color: #000000;
}
h1,h2,p{margin: 0 10px}
h1{font-size: 250%;color: #FFF}
h2{font-size: 200%;color: #f0f0f0}
p{padding-bottom:1em}
h2{padding-top: 0.3em}
div#roundconner{ margin: 0 10%;background: #9BD1FA}
　　
b.rtop, b.rbottom{display:block;background: #FFCC66}
b.rtop b, b.rbottom b{display:block;height: 1px;
　　overflow: hidden; background: #9BD1FA}
b.r1{margin: 0 5px}
b.r2{margin: 0 3px}
b.r3{margin: 0 2px}
b.rtop b.r4, b.rbottom b.r4{margin: 0 1px;height: 2px}
/style
　　
body
div id="roundconner"
b class="rtop"b class="r1"/bb class="r2"/bb class="r3"/bb class="r4"/b/b
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asdfaaaaaaaaaaaaaaaaaaaaaaaaaaafadsfasdfasdfsaf
b class="rbottom"b class="r4"/bb class="r3"/bb class="r2"/bb class="r1"/b/b
/body
/html