nav h1{
text-align:center;
font-style: normal;
color: #01BFA5;
font-family: Impact;
font-size: 65px;
background-color: #000000;
margin-top : 40px;
margin-bottom : 40px;
}

body 
{
	margin:-30px;
	padding : 0px;
	font-family : Verdana, sans-serif;
	background-color: #000000;
}

nav{
	width: 100%;
	background-color : #5B5B5B;
	margin: -30px;
}	

nav > ul{
	margin: 0px
	padding: 0px;
}

nav li {
	list-style-type: none;
}

nav > ul > li{
	float:left;
	margin-left: 3px;
	position : relative;
}

nav > ul::after{
	content:"";
	display:table;
	clear:both;
}

.submenu{
	display: none;
}

nav input {
	display: none;
}

nav label{
	display: none; 
}

nav a{
	display :inline-block;
	text-decoration : none;
}

nav > ul > li > a{
	padding : 20px 25px;
	color:#FFFFFF
	
}

nav > ul > li:hover a{
	padding:15px 30px 20px 30px;
}

nav li:hover .submenu{
	display: inline-block;
	position : absolute;
	top: 100%;
	left: 0px;
	padding: 0px;
	z-index: 1000;
}

.submenu li a{
	padding: 15px 30px;
	front-size:13px;
	color:#222538;
	width: 270px;
}

.submenu li{
	border-bottom: 1px solid #FFFFFF;
}

.menu-introduction:hover{
	border-top:5px solid #01BFA5;
	background-color : RGBa(6,76,100,.15);
}

.menu-partie1:hover{
	border-top:5px solid #01BFA5;
	background-color : RGBa(6,76,100,.15);
}

.menu-partie2:hover{
	border-top:5px solid #01BFA5;
	background-color : RGBa(6,76,100,.15);
}

.menu-partie3:hover{
	border-top:5px solid #01BFA5;
	background-color : RGBa(6,76,100,.15);
}

.menu-exemple:hover{
	border-top:5px solid #01BFA5;
	background-color : RGBa(6,76,100,.15);
}

.menu-source:hover{
	border-top:5px solid #01BFA5;
	background-color : RGBa(6,76,100,.15);
}

.menu-partie1 .submenu{
	background-color : RGB(160,160,160);
}

.menu-partie2 .submenu{
	background-color : RGB(160,160,160);
}

.menu-partie3 .submenu{
	background-color : RGB(160,160,160);
}

.submenu li:hover a{
color: #EEEEEE;
font-wieght: bold;
}

.menu-partie1 .submenu li:hover {
	background-color: RGB((160,160,160);
}

.menu-partie2 .submenu li:hover {
	background-color: RGB((160,160,160);
}

.menu-partie3 .submenu li:hover {
	background-color: RGB((160,160,160);
}