body {
	background-color: SteelBlue;
	color: dark-blue;
	font-family: "Courier New", sans-serif;
}

/* barre de navigation */

#menu {
  list-style-type: none;
  margin: 0;
  padding: 0;
  overflow: hidden;
  background-color: #333;
}

#menu li {
  float: left;
}

#menu li a {
  display: block;
  color: white;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
}

#menu li a:hover:not(.active) {
  background-color: #111;
}

#menu .active {
  background-color: rgb(0, 0, 0);
}

/*la mise en page des titres*/

h1 {
	text-align: center;
}
/*la mise en page des images */ 

.image1 {
float: left;
}

.image3 {
  text-align: center
}
.image2 {
  text-align: center;
}

/*la mise en page du tableau*/

table, th, td {
	border: 1px solid;
}

table { 
	width: 50%;
}

.tableau {
	float: center;
}

th {
	height: 30px;
}

tr:hover {background-color: white;}