body { margin: 0px 0px 0px 0px; padding: 0px 0px 0px 0px; text-align:center; background-image:url('/SiteAssets/SAMI/fondo.jpg'); background-position:center;background-attachment:fixed } 
div { margin: 0px 0px 0px 0px; padding: 0px 0px 0px 0px; border: none }
#mycontainer { height:100%; width:1024px; padding: 0; margin: 0px auto; position:relative; text-align:left; } 
#myheader { width:1024px; float:left } 
#mymaincontent { width:1024px; float:left } 
#mymainpage { width:1024px; float:left }
#myribbon { width:1024px; float:left}