Was it possible to implement box shadow before css3? Using html?or plain css?

Question

css3 box shadow vs html

Answer 1

maybe something like this
https://code.sololearn.com/WYIJ489Womxd/?ref=app

Answer 2

I’m pretty sure that box shadow was a new feature of CSS3. There may have been a way before to do it but it might not have been very easy; leading to the implementation of the box shadow in CSS3.