===========================index.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> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>无标题文档</title> </head> <script type="text/javascript" language="javascript"> function iFrameHeight() { var ifm= document.getElementById("iframepage"); var subWeb = document.frames ? document.frames["iframepage"].document : ifm.contentDocument; if(ifm != null && subWeb != null) { ifm.height = subWeb.body.scrollHeight; } } </script> <body> aaaaaaaaaaaaaaa <iframe onLoad="iFrameHeight()" src="iframe.html" id="iframepage" frameBorder="1" scrolling="no" width="100%" > </iframe> bbbbbbbbbbbbbb </body> </html>
===========================iframe.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> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>无标题文档</title> </head> <body style="padding:0; margin:0;"> 1111111111 <div style="border:#00FFFF thin solid; 300px; height:300px; background:#CCCC99"></div> 2222222222 </body> </html>