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17 lines
338 B
HTML
17 lines
338 B
HTML
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<html>
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<head>
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<style>
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div { background: red; height: 3em; }
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div:empty { background: lime; }
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</style>
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</head>
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<body>
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<div style="display: none"></div>
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<script>
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var div = document.getElementsByTagName("div")[0];
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div.appendChild(document.createTextNode("aa"));
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div.style.display = "";
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</script>
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</body>
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</html>
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