Transparent Logos on UL - White to Black - no checkerboard

/*
* Modification of original Code written by of Mafi0z (http://userlogos.org/node/3675)
*/

@namespace url(http://www.w3.org/1999/xhtml);

@-moz-document domain("userlogos.org") {

}
.node .content .field-type-image img
{

background: #ffffff !important;
}

.node .content .field-type-image img:hover
{

background: #101010 !important;
}