Product Thumbnails Displaying Vertically instead of Horizontally

For some reason which I can’t figure out my products thumbnails are displaying. I went thru the steps of deactivating all my plugins to make sure none of them were conflicting and I didn’t see any issues. I even removed all my Additional CSS entries and its still there. I’m at a loss. I don’t know what could be causing it. I may have to switch to another theme if I can’t figure it out. If anyone can direct me to a resolution, it would be greatly appreciated. Thanks.

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