button is not responsive on smartphone

Hi there

When you look at the first button (at the end of the image) you see on my website goes out of shape when you are using a smartphone. the other buttons stay in shape. Does someone have a hint what reason is behind that behaviour of the button?

Cheers
Dani

• This topic was modified 3 years, 11 months ago by doppeljim.

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