The end results of this would be tabs switching to the accordion for viewport widths under 992 pixels. Is that what you intended? Isn't there enough space to fit tabs from 768px to 991px? If that is what @num3thod wanted then that is fine but I though he was only concerned about the thumbnails for the carousel being visible from 768px to 991px (which if that is the case then you have the option of splitting that CSS to a separate tabs-smallViewUnder file.