How do I perfectly fit the background picture on the screen

Question

The background image I want to put is pretty big, bigger than the whole screen. I want to fit it to the screen size.

Answer 1

Css:
Background-size:cover

Answer 2

use css

Answer 3

Thanks

Answer 4

Another question. What about setting the position of the background image; if the picture is big, setting the specific part of the picture that shows on the screen

Answer 5

Background-position

https://www.w3schools.com/cssref/pr_background-position.asp

Answer 6

Thanks again guys