.passcodeDigit {
    background: #EEF0F0 0% 0% no-repeat padding-box;
    border-radius: 6px;
    opacity: 1;
    font: normal normal normal 40px/33px 'Noto Sans JP', 'sans-serif';
    letter-spacing: 0px;
    color: #0E0E0E;
}

.passcodeDigit.form-control {
    height: calc(1.2em + .5rem + 2px);
    padding: 0;
}