HTML DOM marginHeight Property
Definition and Usage
The marginHeight property can set or return the page blank at the top and bottom of the frame (in pixels).
Syntax
iframeObject.marginHeight=pixels
Example
The following example can return the page blank at the top and bottom of the iframe:
<html>
<body>
<iframe src="frame_a.htm" id="frame1" marginheight="50"></iframe>
<br />
<script type="text/javascript">
x=document.getElementById("frame1");
document.write("Top and bottom margins of the iframe are: ");
document.write(x.marginHeight);
</script>
</body>
</html>
