/*Exercice 06-10-2015 */

html, body{				
	margin:0;
	margin-left:100px;
	padding:0;
}

div{
background-color:white;	
width:70px;
height:70px;
border-style: solid;
margin:20px;
}

#premierbloc {
	background-color:#fe0000;
	width:700px;
	height:400px;
	border-style: solid;
	margin: 30px;
}

#secondbloc {
	background-color:#0000fe;
	width:700px;
	height:400px;
	border-style: solid;
	margin: 30px;
}

#troisiemebloc {
	background-color:#fef500;
	width:700px;
	height:400px;
	border-style: solid;
	margin: 30px;
}

#pb1 {

	border-style: dashed;
	width:300px;
	height:300px;
	margin: 15px;
	float:left;



}

#pb2 {
	border-style: dashed;
	width:300px;
	height:300px;
	margin: 15px;
	float:left;
}

#sb1 {
	border-style: dashed;
	width:300px;
	height:300px;
	margin: 15px;
	float:left;
	
}

#sb2 {
	border-style: dashed;
	width:300px;
	height:300px;
	margin: 15px;
	float:left;
	
}

#tb1 {
	border-style: dashed;
	width:300px;
	height:300px;
	margin: 15px;
	float:left;
}

#tb2 {
	border-style: dashed;
	width:300px;
	height:300px;
	margin: 15px;
	float:left;
	
}