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17 lines
284 B
HTML
17 lines
284 B
HTML
<!DOCTYPE html>
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<html>
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<head>
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<style>
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div#x::first-letter { color: blue; }
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</style>
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</head>
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<body>
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<div id="x">x</div>
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<script>
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document.body.offsetWidth;
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var div = document.getElementById("x");
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div.id = "y";
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div.removeChild(div.firstChild);
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</script>
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</body>
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</html>
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