missing class="specialsListBoxContents" on Specials page

I'm trying to customize the look of the product listings on my Specials page. I've noticed in the code view of another zencart site that class "specialsListBoxContents" applies to the location I'd like to add styling to, however, my site does not seem to have this class in place on the Specials page. I've compared the following two files from my site to a fresh install, and they are identical:

templates/../common/tpl_columnar_display.php

templates/../templates/tpl_specials_default.php

The class exists in my stylesheet, and I can see that it should be dynamically generated into the template, but it is not. What other files should I look at that go into the generation of this style class in the template?