<!DOCTYPE html>
<html lang="en-US">
<head>
<style>
iframe{
width:100%;
height:200px;
}
</style>
</head>
<body>
<p>I will not change color</p>
<p id="point">I will change color.</p>
<iframe src="/js/window-parent/iframe">
Your browser do not support iframe.
</iframe> </body>
</html>