Frontend Mentor | QR Code Landing Page coding challenge solution

@itush

Posted about 1 year ago

Congratulations on completing the challenge! 🎉

Welcome to the platform! 🎉 We're thrilled to have you here and excited to see your progress 💪as you continue your front-end development journey.

Your solution looks nice to me :)

margin: 0 auto; is used to horizontally center an element within its container. This sets the top and bottom margins to 0 and the left and right margins to automatic, which causes the element to be centered horizontally.
To make it mobile responsive it is important to first understand how the breakpoints work with the media queries, which breakpoints to target etc.
Looks like the <div class="box-container"> element is not closed properly. It should have a closing tag </div>.
To center it vertically and horizontally you may add display: flex; align-items: center; justify-content: center; height: 100vh; to .box-container

In my projects:

I always start with mobile-first workflow.
I use at least one main element for a page (entire content goes into the main, if I'm not using header & footer), and avoid divs as much as possible and use section and article element wherever I can.

<body>
<main>
All content 
</main>
</body>

I Use relative units as much as possible and avoid absolute units whenever possible.
If you are someone who is just starting out with front-end development, I strongly suggest starting with the QR code component project(which you did). Also in the challenges page you may filter by (Newbie, HTML&CSS) sort by (easier first) to select projects that will help you solidify your foundation. To avoid any potential knowledge gap⚠️ please first solidify HTML, CSS, JS fundamentals and then move on to any framework or library.
I remember when I started out, I made countless mistakes and spent long hours searching for solutions. But hey, you don't need to go through the same struggles! 🙌 To help you shorten the learning curve, I recommend going through the following articles. They contain valuable insights that can make your journey smoother:

📚🔍 12 important CSS topics where I discuss about css position, z-index, box-model, flexbox, grid, media queries, mobile-first workflow, best practices etc. in a simple way.

📚🔍 11 important HTML topics where I discuss about my thought process and approach to convert a design/mock-up to HTML along with other topics.

I hope you find these resources helpful in your coding adventures! 🤞

I'm eagerly looking forward to seeing the amazing projects you'll create in the future! 🚀💻

Keep up the fantastic work and happy hacking! 💪✨

Marked as helpful

Benevolent• 490

@bene-volent

Posted about 1 year ago

There are 3 common ways to center and 1 additional way which is not advised to use anymore because some of the new properties

Horizontally: You can set a max-width or a fluid width on a container thats wraps you content and setting the margin: [vertical-margin] auto or margin-inline : auto. This should center it horizontally

<main>
<div class="container">
<div class="content-box">Content</div>
</div>
</main>

.container{
max-width : 20rem;
margin-inline : auto;
}

In a Box:

Grid: Making the parent grid and using place-content property to center all elements. But the parent has to have a height larger than the content

.center-content{
display:grid;
place-content:center;
}

Flex : Follows the same principle as previous one but has some caveats of child becoming a flex-item;

.center-content{
display:flex;
justify-content:center;
align-items:center;
}

You can look up resources on MDN and W3school for easier understanding

QR Code Landing Page

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