ugh what do i have to do to center this heading

sample text. Let's try a line break! I want the line to break
here.

Here i'm adding a secret hidden title to this text. mouse over it to see it!

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look at me! I got a horizontal rule in here! Fancy, huh?
this is me practicing a line break again and also taking a moment to say W3 Schoolsare fantastic!!

This is me going down a hill: ^wheeeeeee_eeeee

I forgot forgor

test desu