body {
	font-family: Calibri;  
	width: 100%;  
	margin-left:auto;
	margin-right:auto;
	background-color:black;
	text-align:center;
}

#banniere {
	max-width:100%;
	height: 222px;  
	font-size: 2em;  
	font-weight: bold;  
	color: #912d08;  
	text-align: center;  
	background-image: url("images/banniere.jpg");   
}

#retour{
	position:fixed;
	left:90%;
	top:10%;
	font-weight:bold;
	font-size:24px;
	background-color:silver;
	color:red;
}

.ecran{
	font-size:18px;
	font-weight:bold;
	color:#2222cc;

}

.chapitre{
	font-size:24px;
	font-weight:bold;
	color:#ff8844;
}

.ligne{
	display:inline-block;
	padding:4px;
	text-align:center;
}

.clip{
	float:left;
	text-align:center;
	color:lightblue;
	padding:4px;
	width:192px;
	height:192px;
}

video{
	width:1200px;
	height:800px;
}