How to make the correct semantic markup?

Question

Layout

The dispute between me and the customer out of the blue,
I propose this semantic markup, and he says to make a full-screen header block, the author block - footer
who is right?

Answer 1

Surprisingly, the customer is right. And I recommend that you refer to the documentation that there is footer and header. There you will find additional information for my answer.

Answer 2

On the one hand, the one who pays is right, on the other, it would be necessary to listen to the argument. Why does he need it as he wants, and why do you think that you are right.
If it's just Wishlist on both sides - do as they say. Basically it doesn't change anything.

Answer 3

Neither one nor the other, because your semantics did not fall to anyone))

Answer 4

Semantics is important. Here somewhere I already came across this question, there one described everything well. Check out this site.

Neither one nor the other, because your semantics did not fall to anyone))

+

Basically it doesn't change anything.

- And under such circumstances, I would not trust to make a website, let alone promotion.