h1 {
	margin:0px;
	padding:0px;
}
#header {
	margin:0px;
	padding:0px;
}
#header ul {
	position:absolute;
}
#slogan {
	margin:0px;
	padding:0px;
}
#slogan img {
	margin:0px;
	padding:0px;
}
#colonnes {
	margin:0px;
}