body {
 background: White;
 font-family: Verdana, Geneva, Arial, Helvetica, sans-serif;
 font-size: 12px;
}

table.tab1 {
	background-image: url(sfondo.gif);
	background-repeat: repeat;
}

table.tab2 {
	background-image: url(sfondo.gif);
	background-repeat: no-repeat;
}

table.tab3 {
	background-image: url(sfondo.gif);
	background-repeat: repeat-x;
}

table.tab4 {
	background-image: url(sfondo.gif);
	background-repeat: repeat-y;
}