css:

#admin-bg		{ background: #fff;  height: 700px; -moz-border-radius: 5px; -webkit-border-radius: 5px; }
#left-content-bg	{ background: #6f7d82; height: 600px; width: 200px; float: left; -moz-border-radius: 5px; -webkit-border-radius: 5px; }
#right-content-bg	{ background: #6f7d82; height: 600px; width: 200px; float: left; -moz-border-radius: 5px; -webkit-border-radius: 5px; }

html:
	<div id="content">
				<div id="admin-bg"></div>
				<div id="left-content-bg"></div>

				<div id="left-content-bg"></div>
			</div>