How to put the bottom block on the header?

Question

css

Hi all. There is such a template. What is the best way to organize layout? Interested in how to impose a dark bg on the header?

Answer 1

Are these 2 different images? Use an outer negative top padding for the bottom box.
upd.
See how the images look individually.
You can simply cut as follows:
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and put one under the other.