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→UA stylesheet rules
==== UA stylesheet rules ====
Suggested UA stylesheet rules:
z-index:2147483647;
background:black;
/* override mapped width and height attributes */ width: 100% !important; height: 100% !important;
}
/* In If there is a full-screen mode, if the root element itself that is not full-screen the root then
we should hide the viewport scrollbar. */
:root:-full-screen-ancestor { overflow: hidden; } :full-screen-ancestor { /* Ancestors of a full-screen element should not induce stacking contexts that would prevent the full-screen element from being on top. */ z-index:auto; /* Ancestors of a full-screen element should not be partially transparent, since that would apply to the full-screen element and make the page visible behind it. It would also create a pseudo-stacking-context that would let content draw on top of the full-screen element. */ opacity:1; /* Ancestors of a full-screen element should not apply SVG masking, clipping, or filtering, since that would affect the full-screen element and create a pseudo- stacking context. */ mask:none; clip:none; filter:none;
}
==== Webkit additions ====