.retour 
{
	font-size:9pt;
	margin-top:20px;
	margin-bottom:20px;
	margin-left:100px;
}

.tableau_principal
{
	width:770px;
	border-style:solid;
	border-width:1px;
	border-color:grey;
	margin-left:auto;
	margin-right:auto;
}

.cellule
{
	width:200px;
	height:10px;
	border-style:solid;
	border-width:1px;
	border-color:grey;
	text-align:center; 
	font-size:10pt;
}

hr
{
	width:80%;
	margin-left:auto;
	margin-right:auto;
	margin-top:40px;
}