<table align="center" width="980" cellspacing="2" cellpadding="2" border="0" bgcolor="#fdf5e0">
<tr>
<td colspan="3"><object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" codebase="http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=8,0,0,0" width="980" height="138" id="LOGOCHICO" align="middle">
<param name="allowScriptAccess" value="sameDomain" />
<param name="movie" value="LOGOCHICO.swf" />
<param name="quality" value="high" />
<param name="bgcolor" value="#cbd89f" />
<embed src="LOGOCHICO.swf" quality="high" bgcolor="#cbd89f" width="980" height="138" name="LOGOCHICO" align="middle" allowScriptAccess="sameDomain" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer" />
</object></td>
</tr>
<tr>
<td rowspan="2" width="409" height="527"><img src="images/imagen1f.png" alt="infiltrator"></td>
<td rowspan="2" width="35" height="443"><img src="images/linea.png"></td>
</tr>
<tr>
<td width="524" height="395"class="box1"></td>
</tr>
<tr>
<td height="440"class="box2" colspan="2"></td>
<td width="524" height="371"><img src="images/imagen2f.png" alt="cámaras septicas"></td>
</tr>
</table>
codigo css
.box1{
background-image: url(images/fondo-botonbox1.png);
background-repeat: no-repeat;
background-position: center top;
text-align: center;
}
.box2{
background-image: url(images/fondo-botonbox2.png);
background-position: center;
background-repeat: no-repeat;
}
el tema es que no puedo centar el background del box1 con el navegador firefox porque con explorer se ve bien.
Desde ya muchas gracias