Adding Custom Font to Blog Post Title

I would like to change the font of my Blog Posts to a custom font. I have already added the font and am currently using it for my H1, but I don't know how to assign the custom font to blog titles. I was able to find two posts from Squarespace Answers addressing the issue, but when I navigate to the pages, it says they don't  exist anymore. Any help would be greatly appreciated!!

@cmwiens Add to Home > Design > Custom CSS. It it doesn't work, please share post url to check code

h2.Blog-title {
    font-family: your font name !important;
}

Any advice for how to get the blog titles and next/previous text at the bottom of the post to show up using my custom font on this site? pw: newman

https://gerbil-oriole-2sn4.squarespace.com/

Thanks!

7 hours ago, nanam said:

Any advice for how to get the blog titles and next/previous text at the bottom of the post to show up using my custom font on this site? pw: newman

https://gerbil-oriole-2sn4.squarespace.com/

Thanks!

h2.item-pagination-title {
    font-family: tuanphan !important;
}