.col1, .col2, .col3{ float:left}
/*======= width =======*/
.w{margin:0 auto; text-align:left; width:702px; }

/*======= header =======*/
#header {height:200px;  background:url(images/bg_top.gif) no-repeat top center}

#content .col3{ width:207px; background:url(images/bg_1.jpg) no-repeat top left; height:391px}
#content .col1{ width:323px; background:url(images/bg_2.jpg) no-repeat top left; height:391px}
#content .col2{ width:172px}
/*======= index.html =======*/
#page1 #content .col1{ width:358px; background:url(images/bg_main.jpg) no-repeat top left; height:391px}
#page1 #content .col2{ width:344px}