兼容所有浏览器的圆角矩形效果代码实例:
CSS3中已经给出了非常方便定义圆角的属性，可惜IE浏览器中兼容性很差，这里就不多介绍了，具体可以参阅CSS3实现圆角效果一章节。由于兼容性问题所以要使用一些特别的方法来实现圆角效果，下面就是一段这样的代码实例。
代码如下:
<!DOCTYPE html><html><head><meta charset=" utf-8"><meta name="author" content="http://www.softwhy.com/" /><title>div+CSS圆角矩形</title><style type="text/CSS">body{ padding:20px; background-color:#FFF; font:100.01% "Trebuchet MS",Verdana, Arial,sans-serif}div#nifty{ margin:0 10%; background:#9BD1FA}p{padding:10px}div.rtop, div.rbottom{ display:block; background:#FFF}div.rtop div, div.rbottom div{ display:block; height:1px; overflow:hidden; background:#9BD1FA}div.r1{margin: 0 5px}div.r2{margin: 0 3px}div.r3{margin: 0 2px}div.rtop div.r4, div.rbottom div.r4{ margin:0 1px; height:2px}</style></head><body><div id="nifty"> <div class="rtop"> <div class="r1"></div> <div class="r2"></div> <div class="r3"></div> <div class="r4"></div> </div> <p>蚂蚁部落欢迎您！</p> <div class="rtop"> <div class="r4"></div> <div class="r3"></div> <div class="r2"></div> <div class="r1"></div> </div></div></body></hmtl>以上代码虽然较为麻烦一些，但是能够实现圆角效果，还是挺不错的。
原文地址是:http://www.softwhy.com/forum.php?mod=viewthread&tid=9521
更多内容可以参阅:http://www.softwhy.com/divcss/
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