h1 {text-align: center; font-family: Georgia, serif; font-size: 200%; } 
body {font-family: Georgia, serif; font-size: 100%; background-color: powderblue; } 
h2 {text-align: center;}

table{ 
	padding: 4px;
	border: 1px solid;
	background-color: #ffffff;
	float: right;
	width: 70%
} 
th{
	background-color: #Def1f9
}
td{
	text-align: center;
}
.milieu{
	text-align: center;
}
.references {
	text-align: center;
}
* {
  box-sizing: border-box;
}
.align2 {
  float: left;
  width: 50%;
  padding: 5px;
}

.align {
  content: "";
  clear: both;
  display: table;
}
#ref{
	text-decoration: underline;
}
/* code de la barre de navigation */
#menu {
  list-style-type: none;
  margin: 0;
  padding: 0;
  overflow: hidden;
  background-color: #000080;
}

#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: #00646D;
}

#menu .active {
  background-color: rgb(0,128,128);
}