* {
	margin: 0;
	padding: 0;
}

body {
	margin: 0 100px;
}

.l-page {
	width: 800px;
	margin: 0 auto;

}

.l-main {
	float: left;
	width: 100%;
}

.b-content {
	margin: 0 0 0 220px;
	padding: 20px;
	min-height: 400px;
}

.l-sidebar {
	float: left;
	width: 220px;
	margin-left: -100%;
	margin-top: 20px;
}