body {
	margin-left: 10%;
	margin-right: 10%;
	margin-top: 5%;
	margin-bottom: 5%;
	font-family: times, verdana;
}

a {
	text-decoration: none;
	color: blue;
}

a:hover {
	color: red;
}

#header img {
	border: 1px solid black;
	float: right;
	margin-left: 20px;
	margin-bottom: 10px;
}

#header {
	margin-bottom: 20px;
}

.bloc h4 {
	text-align: left;
	border-bottom: 1px solid black;
}