/* The page is a screen: black around the cells, nothing else on it. */
html, body { margin: 0; height: 100%; background: #000; overflow: hidden; }
canvas { display: block; }
/* OWLOSUI's screen, lifted over the pictures under its windows' holes - the
   DOS PC's, a watched screen's, the live map's - which the site stacks at
   z-index 9, 8, 7... in the order of their windows (site.js stackPictures).
   OWLOSUI puts it at 1 only when nothing else is said. */
#screen { position: relative; z-index: 10; }
/* The DOS picture in its window: game graphics are pixels - keep them blocks. */
[data-owl-own-keys] canvas { image-rendering: pixelated !important; }