HTML Frame
this is the sample :
<html>
<head>
<title>first try</title>
</head>
<frameset cols="40%,60%">
<frame src="left.html">
<frame src="right.html">
</frameset>
<body>
</body>
</html>
Change left.html and right.html with your site url
You can also add margin after tag <frame src="..........
this is the sample :
<frame src="left.html" marginheight="50" marginwidth="50">