Review My Age Calculator Project. Comment out or Answer Footer and some other Problem And Improvement in it

Question

On this webpage I have a problem,

1) with how to set my footer it's not perfect for mobile devices when the size decreases of the screen or viewport it overwrites the main box.

2) font awesome icons don't show ?
Also, answer how I make it batter or next level.
https://code.sololearn.com/W9XDKUHa76B1/?ref=app

Answer 1

The page does not display as expected on mobile phones because it is not responsive to the screen size. For instance, you are using absolute sizes (pixels) instead of relative sizes (e.g. %, vw...)

You might be interested in this sololearn course:
https://www.sololearn.com/Course/Responsive-Web-Design/?ref=app