Radio buttons without circle

I have to make such radio buttons as on screenshot.
how can I do that?
can’t find any info.
Moreover by default the first button should be chosen.

Here is my site Read-Only: LINK
(how to share your site Read-Only link)

hi @Joanna24 you will need custom CSS code and here is one example on CodePen that may give you an idea and basic code, but there is more examples on CodePen or just google custom radio buttons