body {
    background: #f1f1f1;
}

form {
    position: relative;
    left: 50%;
    top: 50%;
    width: 80%;
    max-width: 500px;
    transform: translate(-50%, -50%);
}

#phone {
    width: 100%;
}

#phone-submit {
    width: 100%;
}

#status {
    text-align: center;
    white-space: pre-line;
}

#awaiting-box {
    position: absolute;
    margin: 0;
    left: 50%;
    top: 50%;
    width: 80%;
    max-width: 500px;
    transform: translate(-50%, -50%);
}