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 {filter: alpha(opacity=55); -moz-opacity: .55;width:1024px; float:left; background-color:white }

#myribbon { width:1024px; float:left}