QR Code Component [CSS Flexbox]

Hello, congratulations on finishing the challenge.

It's perfect, you've got the layout right, one suggestion is better to manipulate the content from its container.

• grid:

body {
    background-color: hsl(212, 45%, 89%);
    display: flex;
    min-height: 100vh;
    display: grid;
    place-content: center;
}

• flex:

body {
    background-color: hsl(212, 45%, 89%);
    display: flex;
    min-height: 100vh;
    display: flex;
    aling-items:center;
    justify-content:center;
}

I hope my contribution is helpful, do not hesitate to ask if you have another question.