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

@-moz-document regexp('.*?.jpg'), regexp('.*?.png'), regexp('.*?.gif'), regexp('.*?/2000'){
html{background-color:rgba(0,0,0, 0.8) !important}
img{max-width:100% ;width:auto !important;height:auto !important; margin:10px auto !important;cursor:default !important;display:block !important;}
}