How to make such a page?

Question

css

Please tell me how to make such a page www.bbc.com/russian/resources/idt-sh/russian_gener...
Half done. But I don’t understand how to make it like this, a block with scrolling content inside a static background.

Answer 1

We need to add an image with CSS and set it to fixed
no-repeat - no repeating (for adaptability)
fixed - fixing
cover - full screen (for adaptability)