#corp{

line-height:20px;
margin-top:50px;
margin-bottom:50px;
margin-left:5px;
margin-right:5px;
}
#gauche{
float:left;
width:255px;
margin:4px;
background-color:#FFCCFF;
min-height:300px;
padding:15px;
}

#centre{
background-color:#CCFFCC;
width:255px;
float:left;
margin:4px;
min-height:300px;
padding:15px;
}

#droite{
background-color:#FFFFCC;
width:255px;
float:left;
margin:4px;
min-height:300px;
padding:15px;
}
#corp img{
border:2px dotted #aaa;
} 
p{
text-align:justify;
}