.adgreen, .adblue1, .adblue2
{
	padding:15px;
	background-position:center center;
	background-repeat:no-repeat;
}
.adgreen
{
	background-image:url(http://www.cartographe.net/res/adgreen.png);
}
.adblue1
{
	background-image:url(http://www.cartographe.net/res/adblue1.png);
}
.adblue2
{
	background-image:url(http://www.cartographe.net/res/adblue2.png);
}