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Solution
Submitted 8 months ago

QR code component

Iwegbu Jeddy•160
@whotterre
A solution to the QR code component challenge
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Solution retrospective


What are you most proud of, and what would you do differently next time?

Achieving a degree of responsiveness

What challenges did you encounter, and how did you overcome them?

Making it responsive, I learnt about min-width and max-width

Code
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Community feedback

  • P
    Øystein Håberg•13,280
    @Islandstone89
    Posted 8 months ago

    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" content. Change .container to a <main>.

    • You don't need to wrap the image in a <div>.

    • The image has meaning, so it must have proper alt text. Write something short and descriptive, without including words like "image" or "photo". Screen readers start announcing images with "image", so an alt text of "image of qr code" would be read like this: "image, image of qr code". 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:

    • Make a habit of including a proper CSS Reset at the top of the stylesheet.

    • I recommend adding a bit of padding, for example 16px, on the body, to ensure the card doesn't touch the edges on small screens.

    • Move font-family to body, and remember to specify fallback fonts: font-family: 'Outfit', system-ui, sans-serif;

    • .container doesn't need any styles, so move those to .card.

    • Remove the margin on the card. Instead, add justify-content: center on the body, to center the card horizontally.

    • max-width on the card should be in rem. Around 20rem works well.

    • 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.

    • On the image, add display: block, height: auto and change width to max-width: 100% - the max-width prevents it from overflowing its container. Without this, an image would overflow if its intrinsic size is wider than the container. max-width: 100% makes the image shrink to fit inside its container.

    Marked as helpful

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How does the accessibility report work?

When a solution is submitted, we use axe-core to run an automated audit of your code.

This picks out common accessibility issues like not using semantic HTML and not having proper heading hierarchies, among others.

This automated audit is fairly surface level, so we encourage to you review the project and code in more detail with accessibility best practices in mind.

How does the CSS report work?

When a solution is submitted, we use stylelint to run an automated check on the CSS code.

We've added some of our own linting rules based on recommended best practices. These rules are prefixed with frontend-mentor/ which you'll see at the top of each issue in the report.

The report will audit all CSS, SCSS and Less files in your repository.

How does the HTML validation report work?

When a solution is submitted, we use html-validate to run an automated check on the HTML code.

The report picks out common HTML issues such as not using headings within section elements and incorrect nesting of elements, among others.

Note that the report can pick up “invalid” attributes, which some frameworks automatically add to the HTML. These attributes are crucial for how the frameworks function, although they’re technically not valid HTML. As such, some projects can show up with many HTML validation errors, which are benign and are a necessary part of the framework.

How does the JavaScript validation report work?

When a solution is submitted, we use eslint to run an automated check on the JavaScript code.

The report picks out common JavaScript issues such as not using semicolons and using var instead of let or const, among others.

The report will audit all JS and JSX files in your repository. We currently do not support Typescript or other frontend frameworks.

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