Make the title of my post bigger and in bold

Hi there,

in Customizer > Typography > Headings --> Single Content Title (H1)

Hi David,
Sorry, I meant in the title above where the URL is

the Site Title size can be set in Customizer > Typography > Header.

I tried, and it doesn't work. I meant the title that you write in the title post like this.https://www.screencast.com/t/8WEcOy1Ikv1M

Customizer > Typography > Headings -> H1 is the main heading.
Customizer > Typography > Headings –> Single Content Title (H1) is the single post title.

Try changing either of them.

It works fine on my post, but when I go back on the blog roll (front page) it still too small.

The Archives use the: Archive Content Title (H2)

Awesome, thanks!

You're welcome