14 lines
214 B
HTML
14 lines
214 B
HTML
<!doctype html>
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<style>
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div::before {
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content: none;
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}
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.foo::before {
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content: "Woof";
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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.body.offsetTop;
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document.querySelector('div').classList.add('foo');
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</script>
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