a {
	float:left;
	height:54px;
	text-indent:-10000px;
	position:relative;
	cursor:pointer;
	width:212px;
}
	a.linkClass { background:url(../images/btn_content_carte.gif) top left no-repeat;}
	a:hover {background-position:left bottom;}
	a.open {background-position:left bottom !important;}