.main { width:100%;}
.min_width {width:expression(((document.documentElement.clientWidth || document.body.clientWidth) < 780)? "780px" : "100%"); min-width:780px;}


.col_1, .col_2, .col_3, .col_box_1, .col_box_22,  .l,.col_box_2{ float:left;}
.f_l, .f_r, .h_ff{ float:right;}

.content .col_1{
	width:250px;
	margin-top: 0;
	
	margin-bottom: 0;
	margin-left: 0;
}
.content .col_2{width:100%;}