.main{width:766px; margin:0 auto; text-align:left;}

/*=========page_1===========*/
.col_1{width:335px;}
.mid{width:5px;}
.col_2{width:335px;}
/*========//page_1===========*/


div.scroll {
height: 170px;
width: 675px;
overflow: auto;
padding: 2px;
}