A ver si te sirve esto de referencia:
Cita: <html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title></title>
<style type="text/css">
.gallery {
padding: 0px;
margin: 0px;
position: relative;
width: 558px;
height: 372px;
background: url(images/effect.png) no-repeat;
}
img {border: none;position: absolute;top: 18px; left: 27px;}
</style>
</head>
<body>
<a href="http://www.midtonedesign.com/portfolio/wp-content/uploads/2008/07/safaridash.png">
<div class="gallery">
<img class="alignnone size-full wp-image-65" title="safaridash" src="http://www.midtonedesign.com/portfolio/wp-content/uploads/2008/07/safaridash.png" alt="" width="504" height="316" />
</div>
</a>
</body>
</html>