When writing a post, you get the possibility to choose your font style from 3 pre-set font templates which can be changed in the editor, inside the post page settings:
Subtitle (T1), Subtitle (T2) and Text style are the ones you should focus on. Then, when you'll be actually writing the post, simply select the text you'd like to change to that style:
Hello @Aaliziyah Cabauatan,
When writing a post, you get the possibility to choose your font style from 3 pre-set font templates which can be changed in the editor, inside the post page settings:
Subtitle (T1), Subtitle (T2) and Text style are the ones you should focus on. Then, when you'll be actually writing the post, simply select the text you'd like to change to that style:
Here's some article that can also help: https://support.wix.com/en/article/customizing-fonts-in-the-new-wix-blog#set-fonts-styles-for-a-specific-post
Hope this helps!