Customer Support

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<head>
<style type='text/css'>
   html, body {height: 100%; margin: 0}
   #content {width: 100%; height: 100%}
   #left {width: 100px; height: 100%; float: left; background-color: red}
   #right {margin-left: 100px; height: 100%; background-color: green}
</style>
</head>
<body>
<div id='content'>
   <div id='left'>Testing</div>
   <div id='right'>Testing</div>
</div>
</body>
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