How to insert background image in css file with this app?

Question

Css

Answer 1

Far as I know you can’t add files directly to sololearn app.

However you can use the background url property to load an image from some external url.

example:
https://code.sololearn.com/WB6SO768Q1Ar/?ref=app

Answer 2

Where is ur image located, with this tutorial I still cannot insert image.