How to remove border around input box in CSS?

Question

When I select to input text in input box:
On PC I have blue 1px solid border with radius of 1-2 px
On mobile (Sololearn playground) yellow 1px solid border with same radius.
Is it possible to remove and how?
https://code.sololearn.com/WZVe2x27ueI4/?ref=app

Answer 1

Add this to css
*:focus{outline:none}

Answer 2

Thank You so much!