nav ul{
	padding: 0px;
	margin: 0px;
	list-style-type:none;
	/*position: absolute;*/
	opacity: 0.9;
	text-align: center;
}

nav li{
	font-family: 'Source Sans Pro', sans-serif;
	display:inline-block;
	width:150px;
	height:40px;
	margin:1px;
	padding:0px;
	/*border-right:1px solid #CCCCCC;*/
	text-align:center;
	line-height:40px;/*idem height*/
	background-color: #999999;
	/*border:10px solid #CCCCFF;*/
	box-sizing:border-box;
}

nav li a{
	display:block;/*pour que tout le block soit cliquable*/
	text-decoration: none;/*pas de coloration des liens*/
	color: #FFFFFF;
	font-weight: bold;
	font-size: 120%;
}

nav li :hover{
	margin:-2px;
	border:2px solid red;
	display:block;
	text-decoration: none;
}

#accueil:hover{border-color: #FFFF00;}
#services:hover{border-color: #00FFFF;}
#magasins:hover{border-color: #FF00FF;}
#devis:hover{border-color: #000000;}
#photos:hover{
	border-top-color: #000000;
	border-bottom-color: #00FFFF;
	border-left-color: #FF00FF;
	border-right-color: #FFFF00;
}