.taling_top{ width:100%; height:100%; background:#ffffff}
.site_center{text-align:center; width:100%; }

.col1, .col2, .col3, .col4, .col5, .box_1, .box_2{ float:left}
/*======= width =======*/
.site_center1{margin:0 auto; text-align:left; width:900px; }


/*======= index.html =======*/
#page1 #content .col1{ width:28%}
#page1 #content .col2{ width:70%; margin-left:1%; margin-right:1%;}
#page1 #content .col2 .box_1{ width:332px}
#page1 #content .col2 .box_2{ width:285px}