Buttons showing slightly moved to the left in Safari and Firefox

Hi, this is a great plugin, I love it!

Everything works great but I’m getting an odd error when displaying the buttons in Safari (mobile and desktop) as well as on Firefox.

Everything works fine on Chrome as you can see in this screenshot: https://snipboard.io/8T3MjN.jpg

But on Safari and Firefox I get this error: https://snipboard.io/ZaQW5h.jpg As you can see the buttons are moved to the left.

I’ve tried everything I could think of with CSS, for example making the padding at the right 0px and things like that but I just can’t fix it. I’m wondering if a more experienced developer as yourself could identify the problem and point me in the right direction.

I don’t know if more users are experiencing this issue, maybe it’s very specific to my case. Any help would be much appreciated. This is driving me crazy and after two days of trying I’m out of options so I decided to bother you.

Thanks in advance and keep the good work.

Best regards.

The page I need help with: [log in to see the link]