14 lines
218 B
HTML
14 lines
218 B
HTML
<!DOCTYPE html>
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<!--form with only invalid elements -->
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<html>
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<head>
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<style>
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form:invalid { display: none; }
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</style>
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</head>
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<body>
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<form>
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<input required>
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</form>
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</body>
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</html>
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