.main {width:100%; margin:auto;}
#content{text-align:left; padding:0 0 15px 72px;width:766px;
margin:auto;background:url(images/b_main_back.jpg) no-repeat 38px 0px;}
#content .col1{margin-right:30px;}
#content .col2{padding-bottom:10px;}
/*page_1*/
#page1 #content .col1{float:left; width:421px;}
#page1 #content .col2{float:left; width:238px;}

/*page_2*/
#page2 #content .col1{float:left; width:282px;}
#page2 #content .col2{float:left; width:378px;}

/*page_3*/
#page3 #content .col1{float:left; width:400px;}
#page3 #content .col2{float:left; width:258px;}

/*page_4*/
#page4 #content .col1{float:left; width:421px;}
#page4 #content .col2{float:left; width:240px;}

/*page_5*/
#page5 #content .col1{float:left; width:690px;}