How to layout a landing page, the background of which is the big picture?

Good time of day.
Actually the question arose. There is a landing, a background where one big picture, which stretches for several blocks. Don't understand how to properly mark up. To impose necessary so that there are no seams, but then the question arises about the normal adaptability. How should I act?
Thank you.

Here is an example of the object you want to mark up.32606f78893c484c86bdef5833703505.png
July 2nd 19 at 13:12
1 answer
July 2nd 19 at 13:14
background-size: cover

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