зеркало из https://github.com/mozilla/gecko-dev.git
15 строки
228 B
HTML
15 строки
228 B
HTML
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<!doctype html>
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<style>
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div {
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display: none;
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}
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div::before {
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content: "Should appear";
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}
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</style>
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<div></div>
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<script>
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document.documentElement.offsetTop;
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document.querySelector('div').style.display = "block";
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</script>
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