body{
	font-family: arial;
	font-size: 12px;
}

.carre{
	width: 200px;
	height: 200px;
	border: 1px solid black;
}

#d0{
	width: 400px;
	height: 400px;
	border: 1px solid black;
}

#menu ul {
  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;
  font-size: 20px;
}

#menu li a:hover {
  background-color: #111;
}

#pres {
	margin-left: 20%;
	margin-right: 20%; 
	font-size: 22px
}


@media screen and (min-width: 768px)
{

}