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CSS-Tricks

Revealing Text With CSS letter-spacing | CSS-Tricks Technical Writing in the AI Age | CSS-Tricks Cross-Document View Transitions: Scaling Across Hundreds of Elements | CSS-Tricks Cross-Document View Transitions: Scaling Across Hundreds of Elements | CSS-Tricks The State of CSS Centering in 2026 | CSS-Tricks Stack Overflow: When We Stop Asking | CSS-Tricks Cross-Document View Transitions: The Gotchas Nobody Mentions | CSS-Tricks What’s !important #11: 3D Voxel Scenes, Flying Focus, CSS Syntaxes, and More | CSS-Tricks Computing and Displaying Discounted Prices in CSS | CSS-Tricks rotateX() | CSS-Tricks rotateY() | CSS-Tricks rotateZ() | CSS-Tricks rotate() | CSS-Tricks Soon We Can Finally Banish JavaScript to the ShadowRealm | CSS-Tricks Using CSS corner-shape For Folded Corners | CSS-Tricks A Scrollytelling Gift for Mum on Mother’s Day 2026 | CSS-Tricks Google’s Prompt API | CSS-Tricks Making Zigzag CSS Layouts With a Grid + Transform Trick | CSS-Tricks Fixed-Height Cards: More Fragile Than They Look | CSS-Tricks What’s !important #10: HTML-in-Canvas, Hex Maps, E-ink Optimization, and More | CSS-Tricks The Importance of Native Randomness in CSS | CSS-Tricks contrast() | CSS-Tricks contrast-color() | CSS-Tricks Let’s Use the Nonexistent ::nth-letter Selector Now | CSS-Tricks Quick Hit #126 Recreating Apple’s Vision Pro Animation in CSS | CSS-Tricks Quick Hit #125 Enhancing Astro With a Markdown Component | CSS-Tricks Quick Hit #124 Markdown + Astro = ❤️ | CSS-Tricks Quick Hit #123 What’s !important #9: clip-path Jigsaws, View Transitions Toolkit, Name-only Containers, and More | CSS-Tricks A Well-Designed JavaScript Module System is Your First Architecture Decision | CSS-Tricks hypot() | CSS-Tricks The Radio State Machine | CSS-Tricks 7 View Transitions Recipes to Try | CSS-Tricks Quick Hit #122 Quick Hit #121 Selecting a Date Range in CSS | CSS-Tricks saturate() | CSS-Tricks justify-self | CSS-Tricks Quick Hit #120 Alternatives to the !important Keyword | CSS-Tricks Quick Hit #119 New CSS Multi-Column Layout Features in Chrome | CSS-Tricks Quick Hit #118 Making Complex CSS Shapes Using shape() | CSS-Tricks Quick Hit #117 Front-End Fools: Top 10 April Fools’ UI Pranks of All Time | CSS-Tricks Sniffing Out the CSS Olfactive API | CSS-Tricks What’s !important #8: Light/Dark Favicons, @mixin, object-view-box, and More | CSS-Tricks Quick Hit #116 Form Automation Tips for Happier User and Clients | CSS-Tricks Quick Hit #115 Generative UI Notes | CSS-Tricks Quick Hit #114 Quick Hit #113 Experimenting With Scroll-Driven corner-shape Animations | CSS-Tricks Quick Hit #112 JavaScript for Everyone: Destructuring | CSS-Tricks Quick Hit #111 Quick Hit #110 What’s !important #7: random(), Folded Corners, Anchored Container Queries, and More | CSS-Tricks 4 Reasons That Make Tailwind Great for Building Layouts | CSS-Tricks Quick Hit #109 Quick Hit #108 Abusing Customizable Selects | CSS-Tricks Quick Hit #107 The Value of z-index | CSS-Tricks Quick Hit #106 The Different Ways to Select <html> in CSS Quick Hit #105 Popover API or Dialog API: Which to Choose? Quick Hit #104 What’s !important #6: :heading, border-shape, Truncating Text From the Middle, and More Yet Another Way to Center an (Absolute) Element An Exploit ... in CSS?! Quick Hit #103 A Complete Guide to Bookmarklets Quick Hit #102 Loading Smarter: SVG vs. Raster Loaders in Modern Web Design Potentially Coming to a Browser :near() You Quick Hit #101 Distinguishing "Components" and "Utilities" in Tailwind Quick Hit #100 Spiral Scrollytelling in CSS With sibling-index() Interop 2026 Quick Hit #99 What’s !important #5: Lazy-loading iframes, Repeating corner-shape Backgrounds, and More Quick Hit #98 Making a Responsive Pyramidal Grid With Modern CSS Approximating contrast-color() With Other CSS Features Quick Hit #97 Trying to Make the Perfect Pie Chart in CSS Quick Hit #96 Quick Hit #95 CSS Bar Charts Using Modern Functions Quick Hit #94 No Hassle Visual Code Theming: Publishing an Extension Quick Hit #93
Front-End Challenges
CSS-Tricks · 2020-04-18 · via CSS-Tricks

My favorite way to level up as a front-end developer is to do the work. Literally just build websites. If you can do it for money, great, you should. If the websites you make can help yourself or anyone else you care about, then that’s also great. In lieu of that, you can also make things simply for the sake of making them, and you’ll still level up. It’s certainly better than just reading about things!

Here’s some resources that encourage you to level up by building things for the sake of leveling up, if you’re up to it.

Frontend Mentor

It looks like this recently launched, and it’s what inspired this post. This idea of giving people front-end work to do is enough to build a business around! Some of them are free, and some of them are not.

HackerRank

Other businesses have centered themselves around this too. HackerRank is all about getting jobs and hiring, so they’ve got a very strong agenda, but part of the way they do that is putting you through these skill tests (solving challenges) which are meant to asses you, but you can certainly learn from them too.

Others like this: Codewars, ChallengeRocket, Codesignal, Topcoder (Jeepers, VCs must love this idea.)

Coderbyte

Coderbyte has paid plans too, and they’re designed to leveling up your job interviewing skills with challenges.

Classic situation: sometimes the site is the product and you’re the customer, and sometimes hiring companies are the customer and you’re the product.

Build Dribbble shots

Here’s the classic move: find something you like on Dribbble, rebuild it. The @keyframers often do it. Tim Evko’s Practice site used to pick a shot for you (along with random GitHub issues and random coding challenges), but the Dribbble part appears broken at the moment. The other stuff still works!

Matt Delac used to do a series along these lines. Indrek Lasn also does it in Medium posts.

Front-End Challenges Club

Andy Bell did a Front-End Challenges Club for a while, and while I think it’s on break, you can view the archives.

CodePen Challenges

CodePen Challenges run every week are are a prompt (along with ideas and resources) for building whatever you like. Low key.

100 Days of CSS Challenge

Daily UI

Daily UI challenges gives you a new challenge every day that starts when you sign up (and it’s free). Lots of people complete the challenge with code.

Frontloops

Frontloops charges $19 for 30 challenges, which includes information, advice, assets, and a solution.

CSSBattle

If your idea of a fun challenge is mimicking a design in as few bytes of code as possible, CSSBattle will appeal to you.

Writing things as tersely as possible is often called “Code Golf” and there is a challenge site for that too.

Ace Front End

Ace Front End has challenges that focus specifically on vanilla HTML, CSS, and JavaScript.

I just happened to notice that the first challenge is a drop down navigation menu, and it doesn’t handle things like aria-expanded. I’m not entirely sure how big of a problem that is and I don’t mean to pick on Ace Front End — it’s just a reminder that there could be problems with any of these challenges. But that doesn’t mean you can’t learn something from them.

Codier

Codier has public challenges that include solutions posted by other users.

rendezvous with cassidoo



Rina Diane Caballar quoting Tim Carry in Extending the Limits of CSS:

Carry’s advice is to start with a real-world object—the interface of a gaming console or a calculator, for example—and to try to recreate it using only CSS. “A great way to push the boundaries with a language is to make something that the language wasn’t meant to be doing in the first place,” he says.