<style type="text/css">

/*Credits: Dynamic Drive CSS Library */
/*URL: http://www.dynamicdrive.com/style/ */

.thumbnail{
position: relative;
z-index: 0;
}

.thumbnail:hover{
background-color: transparent;
z-index: 50;
}

.thumbnail span{ /*CSS for enlarged image*/
position: absolute;
background-color: white;
padding: 5px;
left: -1000px;
border: 1px solid;
visibility: hidden;
color: grey;
text-decoration: none;
}

.thumbnail span img{ /*CSS for enlarged image*/
border-width: 0;
padding: 2px;
}

.thumbnail:hover span{ /*CSS for enlarged image on hover*/
visibility: visible;
position: center;

}
<link rel="stylesheet" href="css/lightbox.css" type="text/css" media="screen" />

<style type="text/css">
<!--
body {
	background-color: #d7eedc;
}
.telno {
	font-family: Arial, Helvetica, sans-serif;
	font-size: 13.5px;
	color: #003300;
}
.h2 {
	font-family: Verdana, Arial, Helvetica, sans-serif;
	font-weight: bold;
	color: #003300;
	font-size: 16px;
}
.style5 {font-family: Arial, Helvetica, sans-serif}
.style6 {font-size: 14px}
.bodytext {
	font-family: Arial, Helvetica, sans-serif;
	font-size: 14px;
	color: #333333;
}
.style8 {color: #333333}
.subheading {
	font-family: Arial, Helvetica, sans-serif;
	font-size: 16px;
	color: #996600;
}
-->
</style>
