codice:body { background-color: #8A426F; background-image: url(img/sfest.jpg); background-repeat: repeat-x; background-position: bottom; height: 100%; margin:0; padding:0px; } #container { width: 760px; \width: 780px; w\idth: 760px; height: 100%; margin: 0px; padding: 0px; margin-left: auto; margin-right: auto; background-color: #fff; background-image: url(img/sfint.jpg); background-repeat: repeat-x; background-position: bottom; }Su explorer tutto ok, ma su firefox il container non ha altezza 100%codice:<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <link href="pippo.css" rel="stylesheet" type="text/css" /> <title>...</title></head> <body> <div id="container"> [img]img/top.gif[/img] Testo testo testo</p> </div> </body> </html>