body {
	background-image: url(images/murpierre1.jpg);
}
.principal
{
   float: right;
   width: 65%;
   margin-top: 1%;
   margin-right: 3%;
   margin-left: 3%;
   color: purple;
   background-color: #90EE90;
   padding: 3%;
   text-align: justify;
   text-indent: 2em;
}

h3 {
	color: red;
	text-align: center;
}
.liens
{
   font-size: 1em;
   color: maroon;   
   margin-left: 2%;
   margin-top: 20px; 
	margin-bottom: 1px;
	padding-left: 2px;
	height: 24px;
	width: 14%;
	border: solid 3px maroon;	
	background-color: #E6E6FA;
	-moz-border-radius: 4%;
}