tidy-html5/regression_testing/cases/github-cases/case-119a@1.html

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<!DOCTYPE html>
<html>
<title>Issue #119 - Test IS attribute</title>
<body>
<h1>About this case</h1>
<p>
This test case ensures that the <kbd>is</kbd> attribute it handled correctly.
Tidy accepts <kbd>is</kbd> for all versions of HTML, but ensures that it is
correct per the HTML5 rules.
</p>
<ul>
<li is><kbd>is</kbd> must have a value.</li>
<li is=""><kbd>is</kbd> must have a value.</li>
<li is="custom_element"><kbd>is</kbd> must contain a hyphen.</li>
<li is="custom-element me_too"><kbd>is</kbd> must not contain a space.</li>
<li is="custom-element"><kbd>is</kbd> is correct for this paragraph.</li>
<li>
<pizzerias is="custom-element">
<kbd>is</kbd> can be used with user-defined tags…
</pizzerias>
<jets-pizza is="custom-element">
…unless they look like autonomous custom tags.
</jets-pizza>
<new-tag is="custom-element">
<kbd>is</kbd> cannot be used with autonomous custom tags detected in
the document, either.
</new-tag>
</li>
</ul>
</body>
</html>