10 lines
250 B
HTML
10 lines
250 B
HTML
<!DOCTYPE html>
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<style>
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@keyframes anim {
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0% { background-color: black; }
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100% { background-color: yellow; }
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}
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</style>
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<script>
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document.styleSheets[0].cssRules[0].cssRules[0].style.setProperty('background-color', 'red', 'important');
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</script>
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