Size H1 and H2 in POSTER STACK 2

Hi, i have problem with head title in post.
I used the same setting as in POSTER 1, but the title H2 in POSTER 2 is in a different size.
Can I change that?

Well thank you.

Sorry, I am lost what you want to archive and what you already tried by yourself.

I want it as in POSTER 1,
The article should be H1 size 30px and h2 size 24 px.

The class is called




yes, thx.