<html>
<head>
<title>Test</title>
<style type="text/css">
BODY, HTML { height: 100%; margin: 0; padding: 0; }
#container { width: 100%; height: 100%; }
DIV.quadrant {
width: 50%;
height: 50%;
float: left;
}
#div1 { background-color: #F00; }
#div2 { background-color: #0F0; }
#div3 { background-color: #00F; }
#div4 { background-color: #FF0; }
</style>
<!--[if IE]><style type="text/css">#container { width: 99%; }</style><![endif]-->
</head>
<body>
<div id="container">
<div id="div1" class="quadrant"> </div>
<div id="div2" class="quadrant"> </div>
<div id="div3" class="quadrant"> </div>
<div id="div4" class="quadrant"> </div>
</div>
</body>
</html>