			.cssnav	{						position:relative;						font-family: arial, helvetica, sans-serif;						background-image:url(../images/boutons/btn_over.jpg);						background-repeat: no-repeat;						white-space: nowrap;						display: block;						width: 160px;						height: 23px;						margin: 0; 						padding: 0; 			}			.cssnav a {						display: block;						font-size: 12px;						width: 160px;						height: 23px;						display: block;						float: left;						text-decoration: none;			}			.cssnav img {width: 160px; height: 23px; border:0; }			* html a:hover {visibility:visible;}			.cssnav a:hover img{visibility:hidden}			.cssnav h4 {						position: absolute;						font-size: 12px;						left: 12px;						top: 5px;						margin: 0px;						padding: 0px;						cursor: pointer;						width: 150px;						height: 15px;						text-align: left;			}
