зеркало из https://github.com/mozilla/gecko-dev.git
41 строка
1.0 KiB
HTML
41 строка
1.0 KiB
HTML
<!DOCTYPE html>
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<html class="reftest-wait">
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<title>
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Opacity transition winning over !important rule creates a stacking context
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</title>
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<style>
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span {
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height: 100px;
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width: 100px;
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position: fixed;
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background: green;
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top: 50px;
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}
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#test {
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width: 100px; height: 100px;
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background: blue;
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/*
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* On the compositor we use a previous vsync time stamp rather than the
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* current time stamp, as a result sometimes transition may be still in
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* before phase after waiting a frame. To compose the same opacity value
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* regardless of whether the transition is in before or active phase, we use
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* steps(1, end) here.
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*/
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transition: opacity 100s steps(1, end);
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opacity: 1 ! important;
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}
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</style>
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<span></span>
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<div id="test"></div>
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<script>
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window.addEventListener("load", () => {
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var target = document.getElementById("test");
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getComputedStyle(target).opacity;
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target.style.setProperty("opacity", "0", "important");
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getComputedStyle(target).opacity;
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document.documentElement.classList.remove("reftest-wait");
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});
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</script>
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