Friday Front-End’s Top Links of 2025

TL;DR: In 2025, Friday Front-End shared a curated list of five articles and one video every week. Here are the links that were most popular.

Every week on Friday Front-End, I share a curated list of five articles and one video. It's fun at the end of the year to look back and see which links recieved the most interest.

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  10: Custom Asidenotes

  Let's extend HTML to turn parenthetical comments into sidenotes automatically! Using web components, we can write a little bit of JavaScript to take an invented element and Do Things To It™.

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  9: To Infinity… But Not Beyond!

  It turns out that in CSS you can go to infinity, but not beyond, because the computed values were the same regardless of whether the calc() value was infinity or infinity + 1.

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  8: New CSS Features to Know for 2025

  This is the first installment of a new series I'm going to start called CSS Quarterly, where I'm going to look at the newest CSS features that are on their way to browsers, as well as look at features that are hitting Baseline Newly Available and Baseline Widely Supported.

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  7: What’s New in Web UI

  Prepare to be dazzled by a symphony of fluidity, dynamism, and expressive power as we unveil the next generation of web UI. It’s a world where user experiences transcend the ordinary and developers become true visual orchestrators. Discover how you can turn 7,000 lines of JavaScript into a mere 7 lines of declarative HTML and CSS, unlocking unprecedented levels of efficiency and elegance.

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  6: My Best CSS Tips from 2024

  I went back over all of the CSS videos that I put out last year and I found my five favorite tips that I shared. It's not all things that are modern CSS. Actually, I think none of them were really modern things where you have to worry about browser support, it's all older stuff that a lot of people just don't seem to be aware of, and it's all things that I think we should all be adding to our repertoire.

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  5: Six CSS Snippets Every Front-End Developer Should Know in 2025

  2025; I think every front-end developer should know how to enable page transitions, transition a <dialog>, popover, and <details>, animate light n' dark gradient text, type safe their CSS system, and add springy easing to animation. AI is not going to give you this CSS.

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  4: It’s Time for Modern CSS to Kill the SPA

  Native CSS transitions have quietly killed the strongest argument for client-side routing. Yet people keep building terrible apps instead of performant websites.

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  3: Web Performance Tips for 2025

  What should you be worried about when it comes to web performance in 2025? How should you even start? I'm a web performance engineer, and I see a lot of common mistakes across the board when web developers and website owners try to understand and fix web performance, or "Core Web Vitals" in popular parlance.

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  2: The Post-Developer Era

  When OpenAI released GPT-4, the consensus online was that front-end development jobs would be totally eliminated within a year or two. Well, it’s been more than two years since then, and I thought it was worth revisiting some of those early predictions, and seeing if we can glean any insights about where things are headed.

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  1: What’s New in Web

  Building on the rapid evolution of web features, we'll explore the speed at which features are progressing, from initial launch in Chrome to Baseline newly available, how developers can keep track of this, and the relationship to Interop 2025. Discover the tools for tracking these advancements and understand their connection to Interop 2025 to make sure your projects are future-proof.

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