.header {
	width: 100%;
	padding: 0px;
	margin: 0px;
	border: 0px;
	background-color: #3300ff;
	color: white;
	font-weight: bold;
}


.header ul {
	padding: 0px;
	margin: 0px;
	border: 0px;
	width: 100%;	
	list-style: none;
}

.header ul li {
	display: inline;
	padding-right: 20px;
}

.main {
	width: 100%;
	height: 1000px;
	padding: 0px;
	margin: 0px;
	border: 0px;
}

.leftcol {
	width: 20%;
	height: 80%;
	float: left;	
	padding: 0px;
	margin: 0px;
	border: 0px;
	background-color: lightblue;
}

.centercol {
	width: 50%;
	height: 100%;
	float: left;
	padding: 0px;
	margin: 0px;
	border: 0px;
	background-color: green;
}

.rightcol {
	width: 30%;
	height: 80%;
	float: left;
	padding: 0px;
	margin: 0px;
	border: 0px;
	background-color: red;
}