Weird passing on my website not updating for my PC?

I’ve had this weird problem with a line of padding underneath my main menus, i went through it with the dev of my theme, and apparently it worked, and it did, when i check it on my girlfriends computer it looks like i wanted it to, the pictures flush with the menu, no overlaping black. But even after restarting my PC, clearing cache on everything it looks the same for my PC, even on other browsers. Im not sure what do to any suggestions are apreciated https://athleticsportsstore.com