div#contenu
{
	background-image:url(/pics/fond_principe.png);
	background-position:bottom center;
	background-repeat:no-repeat;
	
	background-color:#f1cb1e;
	
	padding-left:240px; 
	padding-right:120px; 
	width:310px;
	/* 
	650+10+10 = 670
	10+290
	*/
	
}
div#contenu li
{
margin-bottom:10px;
}

div#titre
{
	background-color:#f1cb1e;
}