Salve, sto cercando da ore un modo per Opacizzare un immagine al passaggio del mouse (anche se per voi sarà una stupidaggine).

Questo è il codice di una piccola slide di 4 immagini con link annesso che ho fatto:

codice:
<table cellpadding="3">

<tbody>
<tr>
<td align="center" width="25%"><a href="https://www.blogger.com/your%20blog%20url%20here/" target="_blank"> <img height="215" src="https://1.bp.blogspot.com/-c5tetIIQ8gU/XoYnEwalYlI/AAAAAAAAALE/z2i3646DeIIKwH6OpSk2v5ErRE62ac58gCKgBGAsYHg/s200/virtual%2Bmariner%2Byoutube3.jpg" width="215" /></a></td>


<td align="center" width="25%"><a href="https://www.blogger.com/your%20blog%20url%20here/" target="_blank"> <img height="215" src="https://1.bp.blogspot.com/-c5tetIIQ8gU/XoYnEwalYlI/AAAAAAAAALE/z2i3646DeIIKwH6OpSk2v5ErRE62ac58gCKgBGAsYHg/s200/virtual%2Bmariner%2Byoutube3.jpg" width="215" /></a></td>


<td align="center" width="25%"><a href="https://www.blogger.com/your%20blog%20url%20here/" target="_blank"> <img height="215" src="https://1.bp.blogspot.com/-c5tetIIQ8gU/XoYnEwalYlI/AAAAAAAAALE/z2i3646DeIIKwH6OpSk2v5ErRE62ac58gCKgBGAsYHg/s200/virtual%2Bmariner%2Byoutube3.jpg" width="215" /></a></td>


<td align="center" width="25%"><a href="https://www.blogger.com/your%20blog%20url%20here/" target="_blank"> <img height="215" src="https://1.bp.blogspot.com/-c5tetIIQ8gU/XoYnEwalYlI/AAAAAAAAALE/z2i3646DeIIKwH6OpSk2v5ErRE62ac58gCKgBGAsYHg/s200/virtual%2Bmariner%2Byoutube3.jpg" width="215" /></a></td>


</tr>
</tbody>
</table>
Si potrebbe fare? qualche idea? Grazie mille!