iframe应用很普遍，通常的需求有两种：
1，获取iframe效果，就是带一个滚动条，可以省不少版面。
2，要嵌一个页面，实现框架链接。
如果不方便使用iframe，可以有如下解决方案：
第一种需求如果我们使用css布局来实现，即可以少一个页面，也可以提高效率。
第二种需求可以采用xmlhttp远程获取。
A. 直接模拟iframe
用层做容器
引用:
#content { overflow:auto; height:200px; width:600px; background:#f00;}
效果演示源代码：
<!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>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>用CSS构建iframe效果 - Css Iframe - RexSong.com</title>
<style>
* { font:12px Arial;}
html { overflow:hidden; border:0; height:100%;}
body { overflow:hidden; height:100%;}
#content { overflow:auto; height:185px; width:600px; background:#ccc; padding:10px;}
</style>
</head>
<body>
<h4 style="font-weight:bold;">用CSS构建iframe效果</h4>
<p>来自：<a href="http://www.webjx.com/" target="_self">网页教学网</a></p>
<p>A. 直接模拟iframe，用层做容器</p>
<div id="content">
<p>·<a class="grey-s"
href="http://www.webjx.com/485/2354485.shtml">仅用css编写无限分级弹出菜单</a><br />
·<a
class="grey-s"
href="http://www.webjx.com/442/2354442.shtml">浏览器滚动条的参数总结</a><br />
·<a
class="grey-s"
href="http://www.webjx.com/436/2354436.shtml">引入css样式表的四种方式介绍</a><br />
·<a
class="grey-s"
href="http://www.webjx.com/424/2354424.shtml">两种方式实现的文字竖排效果</a><br />
·<a
class="grey-s"
href="http://www.webjx.com/336/2352836.shtml">网页设计高级布局40例参考</a><br />
·<a
class="grey-s"
href="http://www.webjx.com/251/2352751.shtml">从GMail认识W3C标准和Ajax</a></p>
</div>
</body>
</html>
[Ctrl+A 全部选择 提示：你可先修改部分代码，再按运行]
用body做容器
引用:
html { overflow:hidden; height:100%; background:#fff; border:0;}
* html { padding:100px 0 0 100px;}
body { overflow:scroll; background:#f00; margin:0; position:absolute; top:100px; left:100px; bottom:0; right:0;}
* html body { height:100%; width:100%;}
效果演示源代码：
<!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>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>用CSS构建iframe效果 - Css Iframe - RexSong.com</title>
<style>
* { font:12px Arial;}
html { overflow:hidden; height:100%; background:#fff; border:0;}
* html { padding:200px 0 0 100px;}
body { overflow:auto; background:#ccc; margin:0; position:absolute; top:200px; left:100px; bottom:0; right:0;}
* html body { height:100%; width:100%; position:static;}
#info { position:fixed; top:10px; left:10px;}
* html #info { position:absolute;}
</style>
<script src="http://www.google-analytics.com/urchin.js" type="text/javascript">
</script>
<script type="text/javascript">
_uacct = "UA-67927-3";
urchinTracker();
</script>
</head>
<body>
<div id="info">
<h4 style="font-weight:bold; margin-top:0;">用CSS构建iframe效果</h4>
<p>来自：<a href="http://www.webjx.com">网页教学网</a></p>
<p>A. 直接模拟iframe，用body做容器</p>
</div>
<p>·<a class="grey-s"
href="http://www.webjx.com/485/2354485.shtml">仅用css编写无限分级弹出菜单</a><br />
·<a
class="grey-s"
href="http://www.webjx.com/442/2354442.shtml">浏览器滚动条的参数总结</a><br />
·<a
class="grey-s"
href="http://www.webjx.com/436/2354436.shtml">引入css样式表的四种方式介绍</a><br />
·<a
class="grey-s"
href="http://www.webjx.com/424/2354424.shtml">两种方式实现的文字竖排效果</a><br />
·<a
class="grey-s"
href="http://www.webjx.com/336/2352836.shtml">网页设计高级布局40例参考</a><br />
·<a
class="grey-s"
href="http://www.webjx.com/251/2352751.shtml">从GMail认识W3C标准和Ajax</a></p>
</body>
</html>
[Ctrl+A 全部选择 提示：你可先修改部分代码，再按运行]
B. 绝对定位模拟iframe
滚动条在外边
引用:
html { overflow:hidden; border:0; height:100%; max-height:100%;}
body { overflow:hidden; margin:0; height:100%; max-height:100%; position:relative;}
#head { position:absolute; top:0; right:15px; width:100%; height:100px; background:#f00; z-index:2;}
#foot { position:absolute; bottom:0; right:15px; width:100%; background:#f00; height:50px;z-index:2;}
#content { height:100%; position:relative; z-index:1; overflow:auto;}
效果演示源代码：
<!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>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>用CSS构建iframe效果 - Css Iframe - RexSong.com</title>
<style>
* { font:12px Arial;}
html { overflow:hidden; border:0; height:100%;}
body { overflow:hidden; margin:0; height:100%; position:relative;}
#content { height:100%; position:relative; z-index:1; overflow:auto;}
#head { position:absolute; top:0; right:16px; width:100%; height:100px; background:#ccc; z-index:2;}
#foot { position:absolute; bottom:0; right:16px; width:100%; background:#ccc; height:50px;z-index:2;}
</style>
<script type="text/javascript">
_uacct = "UA-67927-3";
urchinTracker();
</script>
</head>
<body>
<div id="head">
<div style=" padding:12px 0 0 26px;_padding:6px 0 0 26px;">
<h4 style="font-weight:bold; margin-top:0;">用CSS构建iframe效果</h4>
<p>来自：<a href="http://www.webjx.com/" target="_self">网页教学网</a></p>
<p>B. 绝对定位模拟iframe，滚动条在外边</p>
</div>
</div>
<div id="content">
<p>·<a class="grey-s"
href="http://www.webjx.com/485/2354485.shtml">仅用css编写无限分级弹出菜单</a><br />
·<a
class="grey-s"
href="http://www.webjx.com/442/2354442.shtml">浏览器滚动条的参数总结</a><br />
·<a
class="grey-s"
href="http://www.webjx.com/436/2354436.shtml">引入css样式表的四种方式介绍</a><br />
·<a
class="grey-s"
href="http://www.webjx.com/424/2354424.shtml">两种方式实现的文字竖排效果</a><br />
·<a
class="grey-s"
href="http://www.webjx.com/336/2352836.shtml">网页设计高级布局40例参考</a><br />
·<a
class="grey-s"
href="http://www.webjx.com/251/2352751.shtml">从GMail认识W3C标准和Ajax</a></p>
</div>
</body>
</html>
[Ctrl+A 全部选择 提示：你可先修改部分代码，再按运行]
滚动条在里边
引用:
html { height:100%; max-height:100%; border:0; overflow:hidden;}
* html { padding:100px 0 50px 0;}
body { height:100%; max-height:100%; margin:0; overflow:hidden;}
#content { position:absolute; top:100px; bottom:50px; left:0; right:0; z-index:3; width:100%; overflow:auto;}
* html #content { top:100px; bottom:0; height:100%;}
#head { position:absolute; margin:0; top:0; left:0; width:100%; height:100px; background:#f00; z-index:5;}
#foot { position:absolute; margin:0; bottom:0; left:0; width:100%; height:50px; z-index:5; background:#f00;}
效果演示代码：
<!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>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>用CSS构建iframe效果 - Css Iframe - RexSong.com</title>
<style type="text/css">
* { font:12px Arial;}
html { height:100%; max-height:100%; border:0; overflow:hidden;}
* html { padding:100px 0 50px 0;}
body { height:100%; max-height:100%; margin:0; overflow:hidden;}
#content { position:absolute; top:100px; bottom:50px; left:0; right:0; z-index:3; width:100%; overflow:auto;}
* html #content { top:100px; bottom:0; height:100%;}
#head { position:absolute; margin:0; top:0; left:0; width:100%; height:100px; background:#ccc; z-index:5;}
#foot { position:absolute; margin:0; bottom:0; left:0; width:100%; height:50px; z-index:5; background:#ccc;}
</style>
<script type="text/javascript">
_uacct = "UA-67927-3";
urchinTracker();
</script>
</head>
<body>
<div id="head">
<div style=" padding:12px 0 0 10px;_padding:6px 0 0 10px;">
<h4 style="font-weight:bold; margin-top:0;">用CSS构建iframe效果</h4>
<p>来自：<a href="http://www.webjx.com/" target="_self">网页教学网</a></p>
<p>B. 绝对定位模拟iframe，滚动条在里边</p>
</div>
</div>
<div id="content">
<p>·<a class="grey-s"
href="http://www.webjx.com/485/2354485.shtml">仅用css编写无限分级弹出菜单</a><br />
·<a
class="grey-s"
href="http://www.webjx.com/442/2354442.shtml">浏览器滚动条的参数总结</a><br />
·<a
class="grey-s"
href="http://www.webjx.com/436/2354436.shtml">引入css样式表的四种方式介绍</a><br />
·<a
class="grey-s"
href="http://www.webjx.com/424/2354424.shtml">两种方式实现的文字竖排效果</a><br />
·<a
class="grey-s"
href="http://www.webjx.com/336/2352836.shtml">网页设计高级布局40例参考</a><br />
·<a
class="grey-s"
href="http://www.webjx.com/251/2352751.shtml">从GMail认识W3C标准和Ajax</a></p>
</div>
</body>
</html>
[Ctrl+A 全部选择 提示：你可先修改部分代码，再按运行]
在IE6.0和FF1.5环境下测试通过