a.button_ng { display:block; background-image:url(../pixel/eggs/eggs_1_nix.png); width:12px; height:16px; background-repeat:no-repeat; }
a.button_ng:hover { background-image:url(../pixel/eggs/eggs_1_nd.png); background-repeat:no-repeat; }
a.button_bg { display:block; background-image:url(../pixel/eggs/eggs_1_nix.png); width:12px; height:16px; background-repeat:no-repeat; }
a.button_bg:hover { background-image:url(../pixel/eggs/eggs_1_bl.png); background-repeat:no-repeat; }