How to remove the border around a button in Chrome?

Question

css

Actually, this is the frame that appears around the button when you click on it in chrome.
How to fight?

Thank you.

Answer 1

button, 
button:active, 
button:focus {
    outline: none;
}

Answer 2

button:focus {
outline: none !important
}
fails
*{
outline: none !important
}

Answer 3

button,
button:active,
button:focus {
outline: none !important;
}

Answer 4

Searched the entire internet. None of the suggested solutions help. But as soon as I point out

button {
   position: absolute;
}

the frame magically disappears and everything falls into place.
An option for those who did not fit any of the proposed solutions