body {
	background-color:rgb(41,41,41);
	margin:auto;
}

header, section, article, nav, footer, hgroup {
	display:block;
}

header {
	width:950px;
	height:60px;
	margin-top:10px;
	margin-left:auto;
	margin-right:auto;
	color:white;
	font-size:3em;
}
footer {
	width:950px;
	height:30px;
	margin-top:10px;
	margin-bottom:10px;
	margin-left:auto;
	margin-right:auto;
	color:white;
	text-align:center;
	font-size:0.6em;
}

article{
	width:950px;
	min-height:730px;
	margin:auto;
	padding:0;
	background-color:rgb(245,245,245);
	border:9px solid rgb(230,230,230);
}


canvas{
	margin:150px 225px;
	float:left;
}

#parametres {
    margin:0px;
    padding:0px;
    background-color:gray;
    margin-bottom:20px;
}
#parametres > p {
    margin:0px;
    padding:10px;
}

.entree {
	text-align:center;
	font-size:1.2em;
}

input[type=number].entree {
	width:50px;
}

a {
	color:red;
	font-weight:bold;
	text-decoration:underline overline;
}
form {
    text-align:center;
}