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Solution
Submitted 3 months ago

Used flexbox to center the card. Border-radius to add rounded corners

Adil Solkar•30
@Adil-Solkar
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?
  • Using flexbox to center the card.
  • Containing the image inside it's Parent container & not letting it overflow
  • I would like to use relative values like (rem or em) next time to add padding and margin
What challenges did you encounter, and how did you overcome them?
  • The challenging part was to contain the image in it's Parent container and not let it overflow.
What specific areas of your project would you like help with?
  • I would like to know when to use relative values like(em, rem, %)
Code
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Community feedback

  • P
    Øystein Håberg•13,260
    @Islandstone89
    Posted 3 months ago

    Hi, good job! The centering of the card is spot on :)

    Here are some suggestions I hope you find helpful:

    HTML:

    • <main> holds all of the main content on a page. As a card would likely not be the only component on a page, I would remove .card on main and wrap the card content in a <div class="card"> inside of <main>.

    • 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 modern CSS Reset at the top of your stylesheet. At least include the following snippet:
    *,
    *::before,
    *::after {
      box-sizing: border-box;
    }
    

    MDN has good articles about the CSS Box Model and the box-sizing property.

    • 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.

    • Remove all widths and heights in px. We rarely want to give a component a fixed size, as we need 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. To solve this issue, give the card a max-width of around 20rem.

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

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

    • On the image, add 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
  • Account deletedPosted 3 months ago

    Great solution, well done!

    rem is generally better for responsive layouts, especially for controlling font sizes, margins, paddings, and widths. It scales consistently based on the root font size, making your layout more predictable.

    Another quick take: Avoid fixed heights unless you really need them they can make components overflow or behave unpredictably on smaller screens.

    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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