#principal{
	width: auto;
}

#cgauche, #cdroit{
	width: auto;
	float: none;
	margin-right: 0px;
}

header{
	background-position: right center;
	height: 150px;
	background-size: cover;
}

#cdroit h2{
	background: url(images/puce.gif) 0 9px no-repeat;
	border-bottom: 1px solid #00A6eb;
	padding-left: 10px;
	text-align: left;
}