.letter-group{background-color:#060606;margin-left:-.75rem;margin-right:-.75rem;position:sticky;top:0}@media(min-width:36rem){.letter-group{margin-left:0;margin-right:0}}.letter-group-item{color:#fff;font-size:.875rem;height:2.25rem;width:2.25rem}.letter-group-item.active{background-color:#fff;color:#000}