<!DOCTYPE html>
<html>
<head>
<title>测试</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0, user-scalable=0">
</head>
<body id="body1">
<iframe id="urls" src="child1.html" frameborder="0" scrolling="no" height="100%" style="width: 1px; min-width: 100%; *width: 100%;" ></iframe>
<div style="height: 200px; background: green;">
</div>
</body>
<script>
var iframe = document.getElementById(‘urls‘);
function iframeLoad() {
iframe.height=document.getElementById("urls").contentWindow.document.body.clientHeight;
}
/*
function iframeclick(){
iframeLoad();
}
*/
if (iframe.attachEvent){
iframe.attachEvent("onload",function(){
iframeLoad();
});
} else {
iframe.onload = function(){
iframeLoad();
};
}
</script>
</html>
原文：http://www.cnblogs.com/huahuahua/p/6999893.html