No content displaying in IE8 or lower in only one page
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So, I'm kind of new to this site, but I've found many answers to issues here via google. I'm helping someone with some browser compatibility on a site he's working on, and I've run into a problem that I can't seem to figure out.

Here is the page in question:

http://www.drinkkarmalife.com/category/smoothie-recipes/

The page loads exactly how it's supposed to, with all the content, in IE9, Chrome, Firefox, Safari, and Opera, but in IE8 and lower, no content is shown. 

None of the other pages had such a drastic issue with content being displayed that wasn't the usual quirks of IE that I already know about and was able to remedy. This one kind of stumped me. Any help would be appreciated.

Thanks,
Kevin

Edit: By content I mean anything within the class="content-part-wrapper". Sorry for not being very specific. It all seems to appear within the source, when rendering with IE8 or lower. 