I just installed this with Vanilla 2.1.9 and it is not working. I am able to install it, but if I use the
pre> tag nothing is going it, it is simply displayed as text itself.
same here, writing between <..> but not show!!!
I have tested it on version.2.1.13p1 and on that version it works fine.
You should use the pre tag and also the language name like below:
<pre lang="php">php code goes here</pre>
<pre lang=html">html code goes here</pre>
<pre lang="css">css goes here</pre>