#site_center {
 	margin-left: auto;
	margin-right: auto;
	text-align: center;
}
#main {
 	margin-left: auto;
	margin-right: auto;
	padding: 10px 10px 0px 20px;
	width: 800px;
	text-align: left;
	background-color: #151d22;
}
#main a {
	text-decoration: none;
}
.col_1, .col_2, .col_3, .col_box_1, .col_box_2, .col_box_3, .col_1_h, .col_2_text{ float:left;}