Failed again and again to make responsive

Question

I try but fail to make responsive.It is fine in laptop but bad in mobile 😭😭
https://code.sololearn.com/WWp2A06MTfmg/?ref=app

Answer 1

us em instead of px

Answer 2

Edit to this :

<meta charset="UTF-8" name="viewport" content="width=device-width" initial-scale="2.0"/>