CSS Visibility:hidden issues in Opera: CSS XHTML, Opera, http://www.gmurph.com/cleari/test/

CSS Visibility:hidden issues in Opera

Hi all,
I have set up a link which shows an image on hover. The image (175px wide) exists on the page in normal state but has visibility set to hidden in the CSS. On hover, it appears in a set place on the page. It works fine in all browsers except Opera. If you happen to hover over the "invisible" image (which is just to the left in my example), it flickers on and off between its two states.

To get a clearer idea of what is happening, comment out the 'visibilty:hidden' statement in the CSS to simulate the effect in other browsers.

It seems that Opera does not truly hide the image but leaves a pesky ghost.

I've tried shifting it off screen but Opera then the image doesn't seem to reappear.

Any ideas?

Many thanks in advance...

CSS
---
 
#right-container {
        width:177px;
        background-color:yellow;
        margin-left:800px;
	position:relative;
}
 
.thumbnail span.hovpic{ /*CSS for enlarged image*/
        position: absolute;
        top: 20px;
        left:-180px;       
        visibility: hidden;   
        
}
 
.thumbnail:hover span.hovpic{ /*CSS for enlarged image*/
        top: 20px;
	left: 0px;
        z-index: 50;
	visibility: visible;
}
 
HTML
----
 
<body>
 
<div id="right-container">
    <a class="thumbnail" href="index.php">Home
        <span class="hovpic">
            <img src="images/home_main.jpg" />            
        </span>                
    </a>        
</div>
 
</body>
</html>

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CSS Visibility:hidden issues in Opera

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CSS XHTML

Opera

http://www.gmurph.com/cleari/test/

Cascading Style Sheets (CSS)

Extensible HTML (XHTML)

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