How do you change the button style in an image block?

Site URL: https://flugelhorn-orb-dtjx.squarespace.com/

Hi I was wondering if anyone could help me please.

I'm trying to change the button size/text in my image block, but I can't work out how to do it. I've tried making the text smaller, but that just changes the text size of the whole paragraph above the button as well. Is there any CSS that can single out that one button? All the other buttons in my site are set at 'medium' and look fine, I don't want to change those.

I've attached 2 screenshots, the button that says 'view portfolio' is the one i want to change. The other button that says 'learn more' is the style/size that i want to match it to.

I hope this makes sense, thanks in advance.

Your site is private. You can setup password & share url. We can check easier.

Oops thanks for letting me know, i've changed it to public now and the url is  flugelhorn-orb-dtjx.squarespace.com

Thank you

I fix this on every single site I build. Here you go: 

https://christyprice.com/squarespace-tips-tricks/change-image-button-size

Thank you so much Christy, it works perfectly!