<csstest def="Attribute space-separated value selector with declared namespace" module="W3C Selectors" modulename="css3-modsel" number="99b" rev="1.1" date="12-november-2001" xmlns:a="http://www.example.org/a" xmlns:b="http://www.example.org/b" xmlns:html="http://www.w3.org/1999/xhtml" xmlns="http://www.example.org/css3tests">

<author>Daniel Glazman</author>
<author>Ian Hickson</author>

<cssrules>@namespace a url(http://www.example.org/a);
@namespace b url(http://www.example.org/b);
@namespace html url(http://www.w3.org/1999/xhtml);
*|p, *|q, *|r, *|s { display : block ; margin-bottom : 1em }
*|p, *|r { background-color : lime ! important }
*|*[a|foo~="bar"], *|*[html|class~="bar"] { background-color : red }
</cssrules>

<code>
 <p class="t bar u" xmlns="http://www.w3.org/1999/xhtml">This paragraph should have a green background.</p>
 <q a:foo="hgt bardot f" xmlns="http://www.example.org/a">This paragraph should be unstyled.</q>
 <r a:foo="hgt bar f" xmlns="http://www.example.org/a">This paragraph should have a green background.</r>
 <s b:foo="hgt bar f" xmlns="http://www.example.org/b">This paragraph should be unstyled.</s>
</code>
</csstest>