body {
	text-align: center;
} 

.container_barre {
	background-color: lightskyblue;
	width: 660px;
	height: 20px;
	margin: 0 auto;
	text-align: left 
}

.bouton {
	background-color: white;
	width: 80px;
	height: 20px;
	margin-left: 8px;
	border: 1px solid #888;
	float: left;	
	text-align: center;	
}

.highlight {
	background-color: lime;
}