.flag { width: 32px; height: 32px; background: url(flags-32.png) no-repeat; display:inline-block; }
.flag.flag-cz { background-position: 0 0 }
.flag.flag-sk { background-position: -32px 0 }
.flag.flag-gb { background-position: -64px 0 }
.flag.flag-de { background-position: -96px 0 }