il file css e questo... cmq non ho capito tanto cosa chiedi.. :master:
http://html.it/layout_css/3cfbackground.css
codice:
/*stili per il layout fisso con background*/
html,body{margin: 0;padding:0}
body{font-family: arial,sans-serif;font-size: 76%;text-align:center}
div#container{width:760px; margin:0 auto;
border-width: 0 1px; border-style:solid; border-color: #ccc;
background: url(3rightcol.jpg) repeat-y top right}
div#container2{background: url(3leftcol.jpg) repeat-y top left;text-align: left}
/*stili generici, su header e footer*/
div#header{height: 80px;background-color:#36C;color: #ff0}
h1,h2{margin: 0;padding:0}
h1{padding-left:10px;font: bold 2.3em/80px arial,sans-serif}
h2{color: #69f;font-size: 1.5em}
div#footer a{color:#fff;font-weight: bold;text-decoration: underline}
/*stili specifici per il layout*/
div#navigation{float: left;width: 160px;\width:170px;w\idth:160px;padding: 1em 0 0 10px}
div#extra{float: right; width: 160px;\width:170px;w\idth:160px;padding: 1em 5px}
div#content{margin: 0 170px;padding: 1em 10px}
div#footer{clear:both; text-align:center; padding: 5px 0;
background-color: #69c; color: #000}
/*stili per la navigazione*/
div#navigation ul{margin: 0;padding: 0; list-style-type: none}
div#navigation li{margin: 0;padding: 0}
div#navigation a{color:#369;font: normal bold 1.2em/1.4em arial,sans-serif;text-decoration: none}
div#navigation a:hover{color: #033;text-decoration: underline}
div#navigation a#activelink{color: #033;text-decoration: none}
div#navigation p{font-size: 90%}
/*stili per la sezione extra*/
div#extra div.newsbox{font-size: 90%;margin-bottom: 2em}
div#extra div.newsbox h2{color: #999;font-size: 1.2em}
div#extra div.newsbox p{margin: 0}