How to customize the .has-error class?

[hanaakhoj]

I've been trying to customize how my input should look and i already add a custom css to my input after the validation but i couldn't find a way to hide .has-error class default style!

So this is my code :
var elmErr = elmForm.children('.has-error').css({"border-bottom": "2px solid #F44336"})

and this is what i get :