body
{
	margin: 0px;
	background-color:grey;
	font-family: museo-sans, sans-serif;

}

header
{
	background-color: black;
	color: white;
	border:0px solid black;
	padding: 1px;
	position:static;
	background-attachment: fixed;
	height: 50px;
	padding-left:20%;
	padding-right: 20%;

}
header h1
{
	font-size: 20px;
}
nav
{
   display: inline-block;
    width: 740px;
    text-align: right;
	vertical-align: top
}

nav a:hover /*proprieté quand on passe la souris dessu*/
{
	color:green;

}
nav a
{
	color:white;
	text-decoration: none;

}
nav li
{
    display: inline-block;
    margin-right: 15px;
}
nav ul
{
    list-style-type: none;
}