How to remove buttons in css

I’m new to WordPress. I’m using the Appway WP template. How can buttons be removed from the template? The Appway creator has no instructions. I’ve reached out to them, but all they say is to make the changes in css. I’ve asked for instructions on how to access css to make those changes, but they can’t help. I purchased this app through Envato. Please refer to the attached file. Can anyone assist me with a solution?

Best regards,

Hi @silbano ,

Please contact the author of your purchased theme, theme author will assist you.

How to contact an author to get support or for any technical query: