How to make a similar screen shift effect?

Question

css

I ask you to throw clues on how to make such a screen shift in order to add your form in the future.

contactform.looks-awesome.com

Answer 1

What do you mean by screen offset? Switching the display of the site for different screen resolutions?

Answer 2

Everything is extremely simple, for example like this jsfiddle.net/straj/Lk0wgq9t/1

Answer 3

• Making body a black background
  
• We put all the content in 1 element
  
• When necessary, change its width, height and position.