/* This add-on's own additions to the portfolio's site.css (which is shared,
   and copied verbatim into every repo -- do not edit that one here). Only the
   articles need it: a formula in a <pre> scrolls inside its own box rather
   than widening the page on a phone. A file rather than an inline style,
   because the Report-Only CSP in site-root/_headers already drops
   'unsafe-inline' for styles. */
pre {
  overflow-x: auto;
  max-width: 100%;
}