http://www.52css.com/article.asp?id=805
< html>< head>< title>css圆角效果< /title>< meta http-equiv="content-type" content="text/html; charset=gb2312">< style type="text/css">div.RoundedCorner{background: #9BD1FA}b.rtop, b.rbottom{display:block;background: #FFF}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>< /head>< body>< div class="RoundedCorner">< b class="rtop">< b class="r1">< /b>< b class="r2">< /b>< b class="r3">< /b>< b class="r4">< /b>< /b>< br>无图片实现圆角框< br>< br>< b class="rbottom">< b class="r4">< /b>< b class="r3">< /b>< b class="r2">< /b>< b class="r1">< /b>< /b>< /div>< /body>< /html>
