.devoirs
{	
	width : 20em;
	margin : auto; 
}

dl.border-around 
{
	margin: 2em 0;
	padding: 0;
	width: 20em;
}

.border-around dt
{
	background-color: #131210;
	color: #959289;
	padding: .5em .5em;
	font-weight: bold;
	text-align: center;
	text-transform: uppercase;
	border-left: 1px solid #131210;
	border-right: 1px solid #131210;
	border-top: 1px solid #131210;
}

.border-around dd
{
	margin: 0 0 1em 0;
	background: #DBD8D8;
	text-align: center;
	padding: 1em .5em;
	font-style: italic;
	border-left: 1px solid #131210;
	border-right: 1px solid #131210;
	border-bottom: 1px solid #131210;
}

span
{
	color: #959289;
	text-decoration : underline;
}

.aide{
    border: 3px solid #B83A1B;
	border-radius: 10px;
	width:50%;
	margin: 20px auto;
	padding : 10px ;
	display : none;
	clear : both;
	
	
}



.bouton {
        text-decoration :  underline;
		background:#DCDCDC;
		border: 3px solid #B83A1B;
		border-radius: 10px;
        width: 100px;
        height: 50px;
        margin: auto;
		margin-bottom : 20px;
        padding: 10px;
        text-align: center;
		
}