body,html {
    height: 100%;
}

body {
    display: flex;
    justify-content: space-evenly;
    align-items: center;
    flex-wrap: wrap
}

#barcode-wrap {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

button {
    padding: 8px 20px;
    cursor: pointer;
}