if condition separate

[Trasion]

<if condition="$forum[forumid] == 38,43,36">
style="border-bottom:0px solid #DEDEDE
<else />
style="border-bottom:1px solid #DEDEDE
</if>

That's the code I have.

When I try to click "save" on the template, it returns an error about not being able to use commas.

How would I separate the forumids another way in the original if condition part? I want it so all 3 of those forums show no bottom border, but all others do.