1 <!DOCTYPE html> 2 <html> 3 <head> 4 <meta charset="utf-8"/> 5 <title>转载</title> 6 </head> 7 <body> 8 <iframe class="ai-bottom" id="ai-iframe" src="" width="100%" frameborder="0" scrolling="no" marginheight="0" marginwidth="0" onLoad="iFrameHeight()"></iframe> 9 <script type="text/javascript"> 10 function iFrameHeight() { 11 var ifm= document.getElementById("ai-iframe"); 12 var subWeb = document.frames ? document.frames["ai-iframe"].document : ifm.contentDocument; if(ifm != null && subWeb != null) { 13 ifm.height = subWeb.body.scrollHeight; 14 ifm.width = subWeb.body.scrollWidth;} 15 } 16 </script> 17 </body> 18 </html>
原文：http://www.cnblogs.com/UnknownVictor/p/8004288.html