how to make login form looking good on both PC and phone

Question

https://code.sololearn.com/W8SesK38at16/#
when i do it fit to phone the PC shows this !
is there a solution?

Answer 1

You should learn how to make responsive website

Answer 2

Learn it from here then ;)

https://www.sololearn.com/Course/Responsive-Web-Design/?ref=app

Answer 3

Thanks i do not know that yet

Answer 4

I got it ! Not ready yet! :(