#main {width:1000px;margin:0 auto;position:relative}
#header {height:359px;background:url(images/header-bg.jpg) no-repeat left top}
#header, #content, #footer {font-size:0.75em}
.col-1, .col-2, .col-3 {float:left}
/* home.html */
#page1 #content .col-1 {width:280px;margin-right:40px}
#page1 #content .col-2 {width:280px;margin-right:40px}
#page1 #content .col-3 {width:280px}
/* about-us.html */
#page2 #content .col-1 {width:600px;margin-right:40px}
#page2 #content .col-2 {width:280px}
#footer {height:90px;background:url(images/footer-bg.jpg) no-repeat left top}