QR Code Component

Good job Eligijus, it almost match the design

• About accessibility report: try to replace the <div class="container"> element by the <article> element and the <div class="attribution"> by <footer> element, and put all of that in <main> element like this

<main>
    <article>
        <img src="./images/image-qr-code.png" alt="QR Image">
        <h1>Improve your front-end skills by building projects</h1>
        <p>Scan the QR code to visit Frontend Mentor and take your coding skills to the next 
        level</p>
    </article>
    <footer>
        Challenge by <a href="https://www.frontendmentor.io?ref=challenge" 
        target="_blank">Frontend Mentor</a>. Coded by
        <a href="www.github.com/eligijuslinkevicius">Eligijus Linkevicius</a>.
    </footer>
</main>

These elements above is called semantic elements.

• You can read about semantic Elements in this article HTML Semantic Elements

I hope this helps you