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Solution
Submitted over 2 years ago

QR code component, built with CSS and HTML

Ayodeji Adeboyejo•20
@ayo-adeboyejo
A solution to the QR code component challenge
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Solution retrospective


What is the best way to define height and width CSS properties for the HTML and body tags, in a responsive webpage?

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Community feedback

  • Derwing Medina•200
    @derwing
    Posted over 2 years ago

    I don't like to think in terms of "the best way" as it all depends on your needs. But to set the height and width of the html and body elements in CSS, you can use the height and width properties. For example:

    Copy code html { height: 100%; }

    body { width: 800px; height: 600px; } This will set the height of the html element to 100% of the viewport height and the width of the body element to 800 pixels. The height of the body element will be set to 600 pixels.

    It's important to note that the html and body elements are block-level elements, which means that they take up the full width of their parent container by default. If you want to set a specific width for the html or body elements, you will need to set the width property as shown above.

    You can also use the min-height and min-width properties to set the minimum height and width of the html and body elements. For example:

    Copy code html { min-height: 100%; }

    body { min-width: 800px; min-height: 600px; } This will set the minimum height of the html element to 100% of the viewport height and the minimum width of the body element to 800 pixels. The minimum height of the body element will be set to 600 pixels.

    You can also use body { min-height: 100vh; }

    Marked as helpful
  • Sinisa Vukmirovic•1,680
    @SinisaVukmirovic
    Posted over 2 years ago

    Hello!

    You don't define width for the HTML and body elements.

    For the height, most common way to do define it is

      body {
        min-height: 100vh;
      }
    

    Most of the time, that is enough. Some browser, thought, also require

      html {
        height: 100%:
      }
    
    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.

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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.

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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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