Can we use margin: 0 auto; in html sololearn? Because, when i use it can't work

Answer 1

Can you show us the code ?

Answer 2

It works.

https://code.sololearn.com/WQZCQ7nxc2rd/?ref=app

Answer 3

oh i see, we must insert width css? i see calvin code. and try insert width css. thanks bro
https://code.sololearn.com/WmBa12pGRAVf/?ref=app