If css/html has been directly copied (evidenced say by comments from the original appearing in the copy) then that certainly creates a prima facie case for inf

If css/html has been directly copied (evidenced say by comments from the original appearing in the copy) then that certainly creates a prima facie case for infringement. However, I would say in this case, although the new site may have been inspired by certain stylistic elements of the original (white item background on a dark main background), I wouldn't say this is anywhere near sufficient to amount to actionable copying. Overall Lot18 feels much more polished than Caskers on a brief navigation of both. In any event, it would be advisable for Lot18 to focus on their own business rather than expending energy taking action against Caskers.