parsebugs.html

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<title>Parsing bug testing</title>
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li {color: green; font-style: italic; font-weight: normal; padding: 0.33em 0;}
code {padding: 0.1em 0.2em; border: 1px solid;}
* html #id01,
*html #id02,
html* #id03,
* + html #id04,
*+html #id05,
html > /**/body #id06,
html>/**/body #id07,
li/* comment */#id08,
li/**/#id09
{
   color: red; background: yellow;
   font-style: normal; font-weight: bold;
}
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<p>
Italic green passes (correctly fails to match), bold red-on-yellow fails (matches when it should not).
</p>

<ol>

<li id="id01">
Testing <code>* html #id01</code>
</li>

<li id="id02">
Testing <code>*html #id02</code>
</li>

<li id="id03">
Testing <code>html* #id03</code>
</li>

<li id="id04">
Testing <code>* + html #id04</code>
</li>

<li id="id05">
Testing <code>*+html #id05</code>
</li>

<li id="id06">
Testing <code>html &gt; /**/body #id06</code>
</li>

<li id="id07">
Testing <code>html&gt;/**/body #id07</code>
</li>

<li id="id08">
Testing <code>li/* comment */#id08</code>
</li>

<li id="id09">
Testing <code>li/**/#id09</code>
</li>

</ol>

<p>
Any failures point to potential CSS hacks that will target a browser, and any passes indicate hacks that will not work.
</p>

</body>
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