
Flexbox Froggy
CSS Grid Garden
Scrimba
Codier
CodeCombat
CodePen
Robocode
Play against others in golf with your CSS skills

LeetCode
HackerRank
Codewars
Codechef
Topcoder
Edabit
Spoj
AtCoder is a programming contest site for anyone from beginners to experts. We hold weekly programming contests online.

Which is more popular?
Based on our record, CSSBattle seems to be more popular. It has been mentioned 72 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | cssbattle.dev | atcoder.jp |
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What each product offers, as listed by its team.


Possible disadvantages
No features have been listed yet.
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
No analysis of AtCoder yet.
Walkthroughs and reviews on video.
Jessica Chan challenged me to CSSBattle
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How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using CSSBattle and AtCoder. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


I recommend checking out CSSBattle. Here is a fun video to watch to get an overview of the game:. - Source: dev.to / over 1 year ago
Every now and then I get a "CSS phase". The latest one started when I discovered CSSBattle. This website has daily challenges where you need to reproduce an image with CSS with the least amount of characters. I am horrible, extremely... - Source: dev.to / almost 2 years ago
. CSS Diner: Practice CSS selectors with a fun game. . Flexbox Froggy: Learn CSS Flexbox by playing this game. . Grid Garden: Master CSS Grid layout by playing this game. . Flexbox Defense: A game to learn CSS Flexbox. . CSSBattle:... - Source: dev.to / over 2 years ago
Tracking AtCoder since Oct 2026.
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Interactive coding screencasts created in an instant
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