<li> <b>E[foo$=bar]</b> has an attribute "foo" that ends with "bar"</li>
<li> <b>E[foo*=bar]</b> has an attribute "foo" that contains the substring "bar"</li>
<li> <b>E[foo%=2]</b> has an attribute "foo" that is evenly divisible by 2</li>
<li> <b>E[foo$=bar]</b> has an attribute "foo" that ends with "bar"</li>
<li> <b>E[foo*=bar]</b> has an attribute "foo" that contains the substring "bar"</li>
<li> <b>E[foo%=2]</b> has an attribute "foo" that is evenly divisible by 2</li>