Background buttons css

[arcadia128]

Hello again

 

I have a problem with the background image of the shopping cart when browse with Firefox. You see a gray background that does not appear in the explorer.

 

I think the problem comes from the file jquery-ui-1.8.6.css

 

Thanks and excuse my english

 

Test is here:

 

http://laertes.es/secret/cuentos-soldados-civiles-p-834.html