Change font

Hi

I’m about to store my fonts locally, using Elementor, and I also want to use one of the same fonts from my site for your plugin.
I found the code below in another thread on here, so would I be correct in assuming that if I just replace the font names, it’d work for me?
If that’s right, where would I paste the code?
Or perhaps there’s a different way?

#cookie-law-info-bar, #cliSettingsPopup, #cookie-law-info-again { font-family: Cabin Local !important; }

Thanks in advance

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