.site_center {margin:0 auto; width:936px; text-align:left;}


.col_1, .col_2, .col_3, .col_box_1, .col_box_2{ float:left;}


/*======= index.html =======*/
#page1 .content .col_1{width:311px;}
#page1 .content .col_2{width:264px; margin-left:30px}
#page1 .content .col_3{width:233px; margin-left:33px;}
/*=========================*/