Hope yellow can fit.
See
http://www.codeproject.com/Info/FAQ.aspx[
^] > chapter Highlighting code.
<pre lang="cs">
int <span class="highlight">myVar</span> = 0;
</pre>
Will look like
int <span class="highlight" >myVar</span> = 0;
But it may be bugged since the text after
</span>
do not appear or it is not supported in QA.