用CSS样式，比js好
有的浏览器会禁止执行脚本，那样就无效了
CSS就不会
<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: #FFFFFF}
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>
无图片实现圆角框
<b class="rbottom"><b class="r4"></b><b class="r3"></b><b class="r2"></b><b class="r1"></b></b>
</div>
<br>
<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>
=================================================================
另外一种实现方式
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<!-- saved from url=(0046)http://longbill.cn/down/sample/roundcorner.htm -->
<HTML><HEAD>
<META http-equiv=Content-Type content="text/html; charset=gb2312">
<STYLE>BODY {
FONT-SIZE: 12px; COLOR: #333333; TEXT-ALIGN: center
}
.round {
DISPLAY: inline; MARGIN: 5px; WIDTH: 200px; BACKGROUND-COLOR: lightblue
}
</STYLE>
<META content="MSHTML 6.00.2900.2802" name=GENERATOR></HEAD>
<BODY>
<DIV id=title style="MARGIN: 5px; WIDTH: 500px; BACKGROUND-COLOR: #e9afdf">
<DIV
style="PADDING-RIGHT: 3px; PADDING-LEFT: 3px; PADDING-BOTTOM: 3px; PADDING-TOP: 3px">自动圆角函数<BR>作者</DIV></DIV>
<DIV class=round id=round1>
<DIV
style="PADDING-RIGHT: 3px; PADDING-LEFT: 3px; PADDING-BOTTOM: 3px; PADDING-TOP: 3px">样式1</DIV></DIV>
<DIV class=round id=round2>
<DIV
style="PADDING-RIGHT: 3px; PADDING-LEFT: 3px; PADDING-BOTTOM: 3px; PADDING-TOP: 3px">样式2</DIV></DIV><BR>
<DIV class=round id=round3>
<DIV
style="PADDING-RIGHT: 3px; PADDING-LEFT: 3px; PADDING-BOTTOM: 3px; PADDING-TOP: 3px">样式3</DIV></DIV>
<DIV class=round id=round4>
<DIV
style="PADDING-RIGHT: 3px; PADDING-LEFT: 3px; PADDING-BOTTOM: 3px; PADDING-TOP: 3px">样式4</DIV></DIV>
<DIV id=a style="MARGIN: 5px; WIDTH: 500px; BACKGROUND-COLOR: #e9afdf">
<DIV
style="PADDING-RIGHT: 3px; PADDING-LEFT: 3px; PADDING-BOTTOM: 3px; PADDING-TOP: 3px">说明:<BR>RoundCorner("欲圆角的元素ID"
[, 圆角样式 ]);<BR>圆角样式:可选参数,暂时有4种 </DIV></DIV>
<SCRIPT>
RoundCorner("round1",1);
RoundCorner("round2",2);
RoundCorner("round3",3);
RoundCorner("round4",4);
RoundCorner("a",1);
RoundCorner("title",1);
function RoundCorner(obj,style)
{ var r = [];
var styles = [
{top:["0 5px","0 3px","0 2px","0 1px","0 1px"],bottom:["0 1px","0 1px","0 2px","0 3px","0 5px"]},
{top:["0 5px","0 3px","0 2px","0 1px","0 1px"],bottom:["0px","0px","0px","0px","0px"] },
{top:["0 0 0 5px","0 0 0 3px","0 0 0 2px","0 0 0 1px","0 0 0 1px"],bottom:["0 1 0 0px","0 1 0 0px","0 2 0 0px","0 3 0 0px","0 5 0 0px"]},
{top:["0 5 0 0px","0 3 0 0px","0 2 0 0px","0 1 0 0px","0 1 0 0px"],bottom:["0 0 0 1px","0 0 0 1px","0 0 0 2px","0 0 0 3px","0 0 0 5px"]}
]; //author: longbill.cn
if (!style || style>styles.length) style = 1;
style--;
var btop = styles[style].top,bbottom = styles[style].bottom;
obj = document.getElementById(obj);
if (!obj) return;
var HTML = obj.innerHTML;
obj.innerHTML = "";
for(var istop=1;istop>=0;istop--)
{
var topborder = document.createElement("b");
topborder.style.display = "block";
topborder.style.height = "2px";
topborder.style.backgroundColor = (obj.parentNode.style.backgroundColor)?obj.parentNode.style.backgroundColor:"#FFFFFF";
for(var i=0;i<btop.length;i++)
{
var b = document.createElement("b");
if (obj.style.backgroundColor)
b.style.backgroundColor = obj.style.backgroundColor;
else if (obj.className)
b.className = obj.className;
b.style.display = "block";
b.style.margin = (istop)?btop[i]:bbottom[i];
b.style.height = "1px";
b.style.overflow = "hidden";
b.style.width = "auto";
topborder.appendChild(b);
}
obj.appendChild(topborder);
if (istop) obj.innerHTML+=HTML;
}
}
</SCRIPT>
</BODY></HTML>
=================================================================
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>新建网页</title>
<meta http-equiv="content-type" content="text/html; charset=gb2312" />
<meta http-equiv="Content-Language" content="zh-CN" />
<meta name="robots" content="all" />
<meta name="author" content="lybykw | www.vistathink.com" />
<meta name="Copyright" content="Copyright (c) 2000-2005 www.vistathink.com" />
<link rel="icon" href="/favicon.ico" type="image/x-icon" media="screen" />
<link rel="shortcut icon" href="/favicon.ico" type="image/x-icon" media="screen" />
<meta name="description" content="网页制作" />
<meta name="keywords" content="展望理想,中国网站资源,刘月波,制作,波波工作室,天翼数码,网站制作,Falsh,下载,成都,多媒体制 作,asp,jsp,php,sql,mssql,mysql,酷网站,图标,音乐,mp3" />
<link rel="stylesheet" href="/css/main.css" type="text/css" media="all" />
<script type="text/javascript" src="/public/js/main.js"></script>
<style type="text/css">
<!--
body {font-size:12px;}
.round1 { border:1px solid #AFE8E1; background-color:#fff; position:relative;}
.round1 .tl,.round1 .tr,.round1 .bl,.round1 .br { width:5px; height:5px; overflow:hidden; position:absolute; background:url(http://cn.yimg.com/i/ks/060928/bgcorn.gif) no-repeat;}
.round1 .tl { left:-1px; top:-1px; _top:0;}
.round1 .tr { right:-1px; top:-1px; _top:0; background-position:-4px 0;}
.round1 .bl { left:-1px; bottom:-1px; background-position:0 -4px;}
.round1 .br { right:-1px; bottom:-1px; background-position:-4px -4px;}
.ovt ul { margin:0; padding:0; }
.ovt li {background:url(http://cn.yimg.com/i/ks/060928/br.gif) right no-repeat; height:22px; line-height:22px; list-style:none; float:left; color:#088;}
.ovt span { background:url(http://cn.yimg.com/i/ks/060928/bl.gif) left no-repeat; display:block; padding:0 1em 0 .5em;}
-->
</style>
<script language="javascript">
<!--
//-->
</script>
</head>
<body>
<br><br><br><br><br>
<div class="p100">
<div class="round1">
<div class="tl"></div>
<div class="tr"></div>
<div class="bl"></div>
<div class="br"></div>
<div style=" position:absolute; top:-35px; _top:-22px; left:-25px;">
<ul class="ovt">
<li><span><img name="" src="" width="1" height="22" align="absmiddle" />
<img src="http://cn.yimg.com/i/ks/060928/tab_knowledge.gif" hspace="3" />知识 </span></li>
</ul>
</div>
<div style="padding:10px;">通过下列链接访问参考资料，可帮助你创建引人注目的 Web 页面。<br>动态 HTML (DHTML) 对象模型参考<br></div>
</div>
</div>
</body>
</html>
分享到：
相关推荐
百度百科里的CSS圆角效果.rar百度百科里的CSS圆角效果.rar百度百科里的CSS圆角效果.rar百度百科里的CSS圆角效果.rar
提取自百度有啊的css圆角效果
CSS圆角效果（无背景图片）。。。。。。
纯CSS圆角效果纯CSS圆角效果纯CSS圆角效果
一款经典的DIV+CSS实现的圆角效果
css圆角效果示范，非常简单的例子，教你如何实现圆角
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{...
css圆角效果大家注意下图片，其实就是利用图片+css实现
内容索引:脚本资源,CSS特效,CSS圆角特效 CSS圆角效果，看着很舒服，CSS+JS相结合打造出的效果，没有用到任何背景图片。只要引入一个JS文件，就可以无限制的使用这种效果了。
css圆角提示框是一款纯HTML CSS实现的圆角提示框效果，兼容所有浏览器。 css圆角提示框演示图：
用js实现css3效果的圆角方法，代码简洁方便，效果很不错，跟大家分享一下！！
css3圆角效果，能使网页做的更有个性。
简洁的css特效，无需添加任何图片,方便引用，完美的css圆角特效
css图片圆角处理代码JS脚本代码处理图片圆角效果
css实现圆角效果，写的很详细 很不错
-webkit-border-radius：苹果；...border-radius：用这个属性能实现圆角边框的效果。 现在只有Mozilla/Firefox 和 Safari 3支持该属性。请看下面的示例代码： 复制代码代码如下: <div style=”bac
div+css实现圆角导航菜单的效果。
用CSS实现无图片圆角效果!里面有好几种哦！
NULL 博文链接：https://leadtheway.iteye.com/blog/626344