Here's a video from your live demo:
Yes, it is a bug in Chrome only but it is some Chrome specific behavior, which should not work this way. The thing is that we can't do anything to fix this as the correct styling is there and it is applied after the resizing but for some reason chrome doesn't display the items based on the applied css. As you can see the Buy Now button is also broken in the top strip (while it shouldn't). Maybe this resizing issue will be fixed at some point in Chrome.