How to prevent input box size from changing while on focus?

Question

When any input box is in focus while keyboard is on the screen, sizes of input boxes reduced to half. How can I prevent this? Please help.

The code is posted below.

https://code.sololearn.com/WDio06smZeSu/?ref=app

Answer 1

try px instead of vh

Answer 2

Thank you Aaron Erhardt. It works!