Can we achieve this cosmotic red from a JavaScript?

Hello

If I set a field as REQUIRED (pic. 1) I will get a bold thick red border aroud my field (pic. 2), well.

Setting a field as REQUIRED - Pic. 1

Getting below red bold thick border Pic. - 2

Pls. suggest us can we achieve the same effect / cosmotic effect with a JavaScript, if so, pls. help me by giving the JS code snippet

We want just cosmotic effect (no need of data validations), meaning, just a  thick red bold border around the just field (not including caption), pls. let us know the JS to get this

Thank you