html { box-sizing: border-box; }
*, *::before, *::after { box-sizing: inherit; }
body { margin: 0; }
/* not inside the storefront (.ys): its own reset sizes pictures, and frames fill theirs (this sheet loads after it) */
:where(img:not(.ys img), video:not(.ys video)) { max-width: 100%; height: auto; }