#main {width:980px; margin:0 auto; text-align:left;}

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

#header, #content {width:100%}

.width {width:100%}

/*======= index.html =======*/
#page1 #content .col_1{width:437px; margin-right:28px}
#page1 #content .col_2{width:253px;}
/*=========================*/

/*======= index-1.html =======*/
#page2 #content .col_1{width:253px; margin-right:28px}
#page2 #content .col_2{width:437px;}
/*=========================*/