What are you talking about? I’ve tested it on Chrome, Firefox, Opera, and few other browsers and it seems to work on all of them perfectly.
Also if your concern is the Microsoft Edge browser then I may add yes it has some issues with Microsoft Edge browser and that’s something to be expected. I guess it has something to do with position fixed issue in Microsoft Edge but I kinda think of it as a glitch or something, If you try to zoom in and then zoom out in Microsoft Edge browser then it seems to work but not as good as all the other browsers I’ve mentioned above.