div.cadre
{
	width:80%;
	margin-left:auto;
	margin-right:auto;
	padding:40px;
	background-color:#BBB;
	color:#000;
	text-align:justify;
	min-width:900px;
	font-size:13px;
}

h2
{
	text-decoration:underline;
}

@media only screen and (max-width: 500px)
{

	div.cadre
	{
		padding:10px;
	}
}