.main{width:820px; margin:0 auto; text-align:center;}

/*=========page_1===========*/
#page_1 .col_1{width:473px;}
#page_1 .mid{width:6px;}
#page_1 .col_2{width:262px;}
/*========//page_1===========*/

/*=========page_2===========*/
#page_2 .col_1{width:261px;}
#page_2 .mid{width:6px;}
#page_2 .col_2{width:473px;}
/*========//page_2===========*/