Size of button

[begoo]

How to change the default size button on shortcode for medium or large?

I would like to use "github" style or "habr" style but I want to change it to medium size or large size button

[LikeBtn]

You need to use CSS:
http://likebtn.com/en/change-like-button-style
http://likebtn.com/en/faq#change_design