body {

	text-align: center;
	margin: 0;
	padding: 0;
}
#maincontent {
	background: #fff;
	border-bottom: 40px solid #fff;
}
.grid {
	background: #fff;
	width: 930px;
	margin: auto;
	text-align: left;
}
.grid .col {
	float: left;
	margin: 0 20px 0 0;
}
.grid .x1  { width: 170px; }
.grid .x2  { width: 360px; }
.grid .x3  { width: 550px; }
.grid .x4  { width: 740px; }
.grid .x5  { width: 930px; margin-right: 0; }
.grid .end { margin-right: 0; }