One per frame last item breaks depending on windows browser

[Andreas Hahn]

I implented the one per frame sly scroll and it worked perfectly fine on macOS in the newest Chrome. 

But then i switched to a windows pc which uses the same chrome and the last item always breaks into a new line. Appearing here in the references tab: Portfolio

I tested the mac version of the website on the same monitor, therefore, screen size ain't the problem.

I did not distinguish or coded anything different for browsers or os. 

Here the reproduced JSFiddle. Tested it on macOS and it shows all 3 items in perfect alignment. On Windows, same screen, same browser, last item breaks.

Is there a fix to that problem?