layout/style/full-screen-override.css

   1 /* This Source Code Form is subject to the terms of the Mozilla Public
   2  * License, v. 2.0. If a copy of the MPL was not distributed with this
   3  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   4
   5
   6 *|*:-moz-full-screen-ancestor {
   7   /* Ancestors of a full-screen element should not induce stacking contexts
   8      that would prevent the full-screen element from being on top. */
   9   z-index: initial !important;
  10   /* Ancestors of a full-screen element should not be partially transparent,
  11      since that would apply to the full-screen element and make the page visible
  12      behind it. It would also create a pseudo-stacking-context that would let content
  13      draw on top of the full-screen element. */
  14   opacity: initial !important;
  15   /* Ancestors of a full-screen element should not apply SVG masking, clipping, or
  16      filtering, since that would affect the full-screen element and create a pseudo-
  17      stacking context. */
  18   mask: initial !important;
  19   clip-path: initial !important;
  20   filter: initial !important;
  21   clip: initial !important;
  22   transform: initial !important;
  23   transform-style: initial !important;
  24   /* FIXME: do we need to worry about 'overflow'? */
  25 }
  26
  27 /* XXXdholbert This '@supports' wrapper should be removed once we remove
  28    support for the pref 'layout.css.will-change.enabled'. (This CSS rule should
  29    then be merged with the main rule up above.)  */
  30 @supports (will-change: initial) {
  31   *|*:-moz-full-screen-ancestor {
  32     will-change: initial !important;
  33   }
  34 }
  35