qr-code-component

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>.

• The alt text must also say where it leads(the frontendmentor website). A good alt text would be "QR code leading to the Frontend Mentor website."

• I would change the heading to a <h2> - a page should only have one <h1>, reserved for the main heading. As this is a card heading, it would likely not be the main heading on a page with several components.

CSS:

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

• I recommend adding 1rem of padding on the body, to ensure the card doesn't touch the edges on small screens.

• On the body, change height to min-height: 100svh - this way, the content will not get cut off if it grows beneath the viewport. You can also remove the margin.

• The card should not have a set width, as we want it to be able to grow and shrink according to different screen sizes. However, we do want to limit the width so it doesn't stretch too wide on larger screens. To solve these issues, change width: 20rem to max-width: 20rem.

• font-size on body must also be set in rem, this is vital for accessibility, as using px prevents the font from scaling when a user changes their default font size in the browser.

• Paragraphs have a default value of font-weight: 400, so there is no need to declare it.

• As the design doesn't change, there is no need for any media queries. When you do need them, they should be in rem or em, not px. Also, it is common practice to do mobile styles first and use media queries for larger screens.