table {
    white-space: nowrap;
}

.qr > div {
    text-align: center;
}

@media screen and (max-width: 1299px) {
    .container > div:last-child {
        border-top: 4px solid #888;
    }

    table {
        margin-left: auto;
        margin-right: auto;
    }

    h1,
    h2 {
        text-align: center;
    }

    .container > div:last-child,
    .qr > div:last-child {
        margin-top: 20px;
    }
}

@media screen and (min-width: 1300px) {
    .container,
    .qr {
        display: flex;
    }

    .container > div:last-child {
        margin-left: 40px;
    }

    table {
        width: 100%;
    }

    .qr > div {
        width: 50%;
    }
}