.header{
	background-image: url(img/cheader.jpg);
	background-repeat: no-repeat; 
	background-position: left;
	width: 650px;
	height:150px;
	margin-right:auto;
	margin-top:10px;
}

.main{
	text-align:left;
	width:800px;
	margin-right:auto;
}