div{
  background-color: #0AF;/*Bleu*/
  border: 1px solid black;
  margin: 10px 0px;/*10px de marge haute 
  *et basse*/
}
p{
  background-color: #0FA;/*Vert*/
}
strong{
  background-color: #DD6;/*Jaune*/
}

.w25{
  width: 25%;
}
.h100{
  height: 100px;
}

.gauche{
  float: left;
}
.droite{
  float: right;
}
.icone{
	width:100px;
	height:100px;
	
}