.oauth2-device-form {
    display: flex;
    justify-content: center;
    margin: 10px;
}

.oauth2-device-code {
    font-size: 1.4em;
    border: 1px solid #222;
    padding: 5px 10px;
    background: #222;
    color: #fff;
    border-radius: 2px;
    box-shadow: inset 0 0 4px #111;
    transition: border-color .2s;
    text-align: center;
    font-family: var(--font-monospace);
    min-width: 0;
    max-width: 200px;
    width: 100%;
}
.oauth2-device-code:focus {
    border-color: #8559a5;
}