the image disappears

When I put the class 'moopuffy', the image disappears and I have never had any effect.
tahanks

Hi
1/ which version of joomla are you using ?
2/ give me your url
CEd

joomla! 3.3.3 —
id9.site-en-prod.com

I don't see any problem with mooimage, but the src of the image is
id9.site-en-prod.com/plugins/system/tmlazyload/blank.gif

of course a blank gif ...

I HAVE THIS CODE/
<table style="width: 100%;">
<tbody>
<tr>
<td style="text-align: center;" width="162">
<h4><img class="moopuffy" src="images/photo_acceuil/mission.jpg" alt="mission id9" width="250" height="188" /></h4>
</td>
<td style="text-align: center;" width="162">
<h4><a href="index.php?option=com_k2&amp;view=item&amp;layout=item&amp;id=106" rel="alternate"><img src="images/photo_acceuil/valeur.jpg" alt="valeur id9" width="250" height="188" /></a></h4>
</td>
<td style="text-align: center;" width="162">
<h4><a href="index.php?option=com_k2&amp;view=item&amp;layout=item&amp;id=107" rel="alternate"><img src="images/photo_acceuil/services.jpg" alt="mission id9" width="250" height="188" /></a></h4>
</td>
<td style="text-align: center;" width="162">
<h4><a href="index.php?option=com_k2&amp;view=item&amp;layout=item&amp;id=125" rel="alternate"><img src="images/photo_acceuil/experience.jpg" alt="mission id9" width="250" height="188" /></a></h4>
</td>
</tr>
<tr>
<td style="text-align: center;" width="162">
<h2><span style="font-family: arial black,avant garde; color: #555555;"><a href="index.php?option=com_k2&amp;view=item&amp;layout=item&amp;id=105" rel="alternate"><span style="color: #555555;">Mission</span></a></span></h2>
</td>
<td style="text-align: center;" width="162">
<h2><span style="font-family: arial black,avant garde; color: #555555;"><a href="index.php?option=com_k2&amp;view=item&amp;layout=item&amp;id=106" rel="alternate"><span style="color: #555555;">Valeurs</span></a></span></h2>
</td>

try to unpubslih your tmlazyload plugin and tell me