#main {margin:0 auto; width:960px; text-align:left;}

#header, #content, #footer, .width, .box, #footer {width:100%; overflow:hidden}

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

.col_1 {width:313px}
.col_2 {width:548px}

/*======= index-1.html =======*/
#page2 .col_box_1 { width:262px; margin-right:28px}
#page2 .col_box_2 { width:258px}
/*=========================*/