How do we customize h1, h2, h3 and paragraph font size style and spacing?

These basic elements give style, look and feel to the site.

I want to see what the current settings are… and then change them.

1. Where is the css code located that defines the font on all pages of the theme. Specifically, the paragraph and heading details. I am currently using the Pressive theme.

2. How is this changed?

3. Perhaps it is changed by following this video I saw in another post.

How to Add Custom CSS to your Thrive Theme

However, this only shows how to define the pixel size.

How do we change the font? and…

How do we change the spacing/margin above and below.?

Thanks! I appreciate the help. 🙂