How can I change the size and font only for the header below the title of the page: SERENITY AFTER TURBELENCE.
I don't want to change the font in every header of my post, just the header below the title page. Also, I need the size to be bigger.
I bought custom design, but I don't know what code should I use.
Thank you for all your help.
The blog I need help with is annalabno.com.