How to position the header block absolutely, but at the same time it should not stretch in height to fill the whole screen?

Question

Layout

How to position the header block absolutely, but at the same time it should not stretch in height to fill the whole screen?

https://sergei00026.github.io/lesson_11/

Answer 1

Remove this bottom: 0;game from *

* {
    margin: 0;
    padding: 0;
    bottom: 0;
}

Answer 2

Specify max-heightthe required