how to add sound to code

Answer 1

SpaceL CSS is presentation, not content. This is minimal so it won't work in chrome browser and other browsers.

Use HTML audio tag instead of CSS.
See the below code:
https://code.sololearn.com/WNHlH6S4t5BD/?ref=app

Answer 2

In what programming language?

Answer 3

SpaceL you welcome!🙏

Answer 4

CSS

Answer 5

Thank you