How to remove the Read More button

I just installed the Himalayas theme and I’m doing some testing to see if it works for me.

I am trying to remove the Read More button from the Aboust Us section, so that only the Contact Us For More button is visible.

I tried using something like this:

a.button.button-readmore { display: none !important; }

But it didn’t do the trick. Can you please instruct me on how it can work? Thank you

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