<STYLE TYPE="text/css">

document , titre {border-style: solid;
		display: block; 
		text-align: center;
		font-size: 24pt ;
		font-family: arial ;
		color: blue } 
texte { display: block; 
	font-size: 16pt;	
	color: #0f0f0f ;
	background: #f0f0f0  ;
        margin-left: 10%;
        margin-right: 10%;
        padding-left: 10px;
        padding-right: 10px}
  
question { display: block; 
	font-size: 16pt;	
	color: red ;
	background: #f0f0ff  ;
        margin-left: 10%;
        margin-right: 10%;
        padding-left: 10px;
        padding-right: 10px}

intro {border-style: none;
		display: block; 
		font-size: 24pt ;
		font-family: arial ;
		margin-bottom : 15mm ;
		color: blue } 

chap {border-style: solid;
		display: block; 
		font-size: 20pt ;
		font-family: arial ;
		margin-bottom : 15mm ;	
		color: green } 

cls {border-style: none;
		display: block; 
		font-size: 24pt ;
		font-family: arial ;
		color: blue } 

</STYLE>