body {
  margin:0px;
  padding:0px;
  background-color: navy;
}

p {

 margin-top:100px;
  font-size: 4em;
  text-align: center;
  color:white;
}

.contraire {
	font-size: 1.5em;
  text-align: center;
  color:white;
  font-style: italic;
}


.retour {

	font-size: 2em;
  text-align: center;
}

a {
	color:red;
}