18 lines
289 B
HTML
18 lines
289 B
HTML
<!DOCTYPE html>
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<!-- Nested fieldsets should all become invalid -->
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<html>
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<head>
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<style>
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fieldset:invalid { display: none ;}
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</style>
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</head>
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<body>
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<fieldset>
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<fieldset>
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<input required value="">
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</fieldset>
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</fieldset>
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</body>
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</html>
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