:host,
:root {
    --br-input-number-postfix-background-color: transparent;
    --br-input-number-postfix-color: inherit;
    --br-input-number-postfix-focus-background-color: hsl(215deg 100% 90%);
    --br-input-number-postfix-focus-color: hsl(225deg 100% 55%);
}