#barrenav {
	height: 120px;
	display: block;
	width: 100%;
}
#choix {
	text-align: center;
	position: relative;
}
#texte {
	background-position: center;
	position: relative;
	text-align: center;
	display: block;
	background-color: #FFFFFF;
	width: 100%;
	height: 500px;
	overflow: auto;
}