how to add images to web code?

Question

I am working on my site and did not understand how in HTML and CI am working on my site and did not understand how in HTML and CSS add background image. help me please

Answer 1

Something from Sololearn that I use.

https://code.sololearn.com/WG8Eql4ZZmbU/?ref=app

Answer 2

This is a sample specific to background image.
Replace the URL with the link of your choice

https://code.sololearn.com/WbZ4ak0uSkY0/?ref=app