How to put background image using this app

Answer 1

https://www.sololearn.com/discuss/2402873/?ref=app
https://www.sololearn.com/discuss/2488016/?ref=app
https://www.sololearn.com/discuss/2423570/?ref=app
https://www.sololearn.com/discuss/2968901/?ref=app

Answer 2

Images

https://developer.mozilla.org/en-US/docs/Learn/HTML/Multimedia_and_embedding/Images_in_HTML

audio:
https://developer.mozilla.org/en-US/docs/Web/HTML/Element/audio

video:
https://developer.mozilla.org/en-US/docs/Web/HTML/Element/video

How To Upload your phone images on SoloLearn using phone

https://code.sololearn.com/WT3661NHpV3B/?ref=app

Upload content with Dropbox [Tutorial]

https://code.sololearn.com/WW6t4B73kJVz/?ref=app

How to host/upload an image (IMGBB way)
/by Farhanaz/

https://code.sololearn.com/Wy3lrXNwGsgJ/?ref=app

Upload content with Google drive

https://code.sololearn.com/Wa25A17a19a1/?ref=app