How to add image in background by phone gallery

Answer 1

https://www.sololearn.com/discuss/565851/?ref=app
https://www.sololearn.com/discuss/1325165/?ref=app
https://www.sololearn.com/discuss/156414/?ref=app

Answer 2

First search for an image hosting like imagebb and upload your image there, then you will get its url link. Just copy paste that url in your CSS code where needed.