Please assist with CSS and Revolution Slider

Hey there I was wondering whether anyone could help me with a couple of small CSS issues I am having with the rev slider button size and ‘fa’ icon on this page

First off, the icon is not showing up and is being influenced by other ‘fa’ css in my main.css. I’m not sure how to manage this so it’s not affected by the main.css;

Secondly, even though the size of the button in MOBILE displays in the ‘preview’ correctly, it’s not the correct width or positioning on the slide in mobile view.
I have provided two images of my issue. Is anyone able to guide me please?

image

image

Many thanks

Hello,

Contact with your item author hope they will help you out from your issue.

Thanks!