/* US history's labels sit over coloured map tiles (red text on red ground): a crisp paper outline behind each label's
   letters keeps it legible on any ground, and map names are a darker grey than the book's #86868c */
.lbl { -webkit-text-stroke: 3px var(--page); paint-order: stroke fill; }
.lbl.mark { color: #4a4a50; }