Qr-code component using only HTML and CSS

HTML:

• Every webpage needs a <main> that wraps all of the content, except for <header> and footer>. This is vital for accessibility, as it helps screen readers identify a page's "main" section. Wrap the card in a <main>.

• Do not use words as "picture" or "image" in the alt text, as screen readers announce that automatically. The alt text must also say where it leads(frontendmentor website).

• Headings should always be in order, so you never start with a <h4>. Since this is a component heading, it should be a <h2>.

CSS:

• Including a CSS Reset at the top is good practice.

• Add around 1rem of padding on the body, so the card doesn't touch the edges on small screens.

• On the body, change height to min-height - this way, the content will not get cut off if it grows beneath the viewport.

• Remove all widths and heights in px.

• Add a max-width of around 20rem on the card, to prevent it from getting too wide on larger screens.

• font-size must never be in px. This is a big accessibility issue, as it prevents the font size from scaling with the user's default setting in the browser. Use rem instead.

• Since all of the text should be centered, you only need to set text-align: center on the body, and remove it elsewhere. The children will inherit the value.

• I would use px instead of % for border-radius.

• On the image, add display: block and max-width: 100% - the max-width prevents it from overflowing its container. Remove the margin.

• To create the space between the image and the edge of the card, set padding on all 4 sides of the card:padding: 16px.

• Whenever the left and right margins are identical, you can use the shorthand: padding-inline: 32px.

I think you did a great job!

I would just put a <footer> underneath with the <div> with your name and the name of the challenge in the <href> tags, just for consideration.

parabens que continui assim