Immagini che s'ingrandiscono al passaggio del mouse

<style type="text/css">

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

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

.thumbnail span{ /*CSS for enlarged image*/
position: absolute;
background-color: lightyellow;
padding: 5px;
left: -1000px;
border: 1px dashed gray;
visibility: hidden;
color: black;
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;
top: 0;
left: 60px; /*position where enlarged image should offset horizontally */

}

</style>

<a class="thumbnail" href="LINK IMMAGINE DI ANTEPRIMA"><img src="LINK A CUI PORTA L'IMMAGINE" width="100px" height="66px" border="0" /><span><img src="LINK IMMAGINE DIMENSIONI REALI" /><br />TESTO</span></a>

<a class="thumbnail" href="http://i193.photobucket.com/albums/z225/xybapodcast/assassinscreed.jpg"><img src="http://i193.photobucket.com/albums/z225/xybapodcast/assassinscreed.jpg" width="90" height="70px" border="0" /><span><img src="http://i193.photobucket.com/albums/z225/xybapodcast/assassinscreed.jpg" /><br />Stefano-mike</span></a>