Answered by : rohit-singh

button { border: none;
}
button:focus { border: none; outline: none;
}
button:focus{ outline:none !important;
}
(add !important if it is used in Bootstrap)

Source : | Last Update : Wed, 06 May 20

Answered by : wandering-warbler-bgupzuul9zee

button:focus { outline: none; }

Source : https://stackoverflow.com/questions/11497094/remove-border-from-buttons | Last Update : Wed, 16 Sep 20