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Solution
Submitted 10 months ago

QR code component using flexbox with RWD

yahappylemon•170
@yahappylemon
A solution to the QR code component challenge
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Community feedback

  • P
    Øystein Håberg•13,260
    @Islandstone89
    Posted 10 months ago

    Hey, good job!

    After looking at your code, these are my suggestions - I hope you find them helpful.

    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. Change .container to a <main>, and have the <h1> inside of the main.

    CSS:

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

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

    • Remove the styles on .container, it doesn't need any styles.

    • Remove the margin on the card.

    • Instead, add align-items: center on the body. I would also add gap: 1rem so the main and footer don't squeeze against each other.

    • Remove the width and height in px on the card. We rarely want to give a component a fixed size, as we want it to grow and shrink according to the screen size.

    • We do want to limit the width of the card, so it doesn't get too wide on larger screens. Give the card a max-width of around 20rem to solve this issue.

    • 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.

    • letter-spacing must also never be in px. You can use em, where 1em equals the element's font size.

    • You don't have to declare those font weights - headings have font-weight: 700 as the default, and paragraphs have font-weight: 400.

    • On the image, add display: block 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
  • camilo cuartas•100
    @camilo-cloud
    Posted 10 months ago

    Nice done!

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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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