body {
	margin:0px;
	background-color:#ffffff;
	font-family:arial, verdana, sans-serif;}

#header {
	background-color:#cccccc;
	padding:10px;
	height:120px;}

#navigation {
	background-color:#efefef;
	padding:10px;
	height:40px;}

#footer {
	background-color:#cccccc;
	padding:10px;
	height:40px;
	clear:both;
	border-top:20px solid #ffffff;}

/* 3 columns */
.column1of3, .column2of3, .column3of3 {
	float:left;
	width:28%;
    margin-left:2%;
	background-color:#cccccc;
	padding:1%;
	margin-top:20px;
	height:175px;
	min-width:210px;
	max-width:400px;}

#header, #navigation, #footer, .columns123 {min-width:750px;}