The FT map wrapped the planet into a row of copies and showed Leaflet's
hard-coded grey beyond it. noWrap tiles inside hard bounds now, like the
grid-square map already did — and the container background override moves to
style.css so EVERY map's surround follows the theme's card surface instead
of #ddd (the grid map's per-div fix was losing to leaflet.css specificity).
rouggy
2587e6bcfe