Need help with mobile version button

My buttons are not working properly in mobile version. It looks correct inside the designer, but when I publish it, it doesn’t look the same on my phone. But it works fine on desktop. Please help figure it out.
The button design looks like this:
Screen Shot 2020-12-21 at 19.22.32

The problem is that the line doesn’t show up: it cuts off the left side.

Here is my site Read-Only: