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Year 2025

1,335 articles published in 2025.

Frontend — The Gap Strikes Back: Now Stylable

The Gap Strikes Back: Now Stylable

Styling the space between layout items — the gap — has typically required some clever workarounds. But a new CSS feature changes all that with just a few simple CSS properties that make it easy, yet also flexible, to display styled separators between your layout items.

PBPatrick BrossetPatrick Brosset·July 1, 2025Frontend
Career & Teams — An inside look at Meta’s transition from C to Rust on mobile

An inside look at Meta’s transition from C to Rust on mobile

Have you ever worked is legacy code? Are you curious what it takes to modernize systems at a massive scale? Pascal Hartig is joined on the latest Meta Tech Podcast by Elaine and Buping, two software engineers working on a bold project to rewrite the decades-old C code in one of Meta’s core messaging libraries […]

CWChris Wiltz·July 1, 2025Career & Teams
Frontend — Meta joins Kotlin Foundation

Meta joins Kotlin Foundation

We are proud to announce that Meta has officially joined the Kotlin Foundation as a gold member, marking a significant milestone in our ongoing commitment to Kotlin and the broader Android development ecosystem. Over the past several years, Meta engineers have been actively migrating our extensive Android codebase—comprising tens of millions of lines—from Java to […]

CWChris Wiltz·June 30, 2025Frontend
Frontend — Quick Hit #51

Quick Hit #51

An early preview of Chrome 139 includes six new CSS features, including the first hint of custom functions.

GGGeoff GrahamGeoff Graham·June 27, 2025Frontend
Frontend — CSS Blob Recipes

CSS Blob Recipes

Blob, Blob, Blob. What's the most effective way to create blob shapes in CSS? Turns out, as always, there are many. Let's compare them together!

JDJuan Diego RodríguezJuan Diego Rodríguez·June 27, 2025Frontend
Design & UX — All color is best-effort

All color is best-effort

I do not come to you with answers today, but rather some observations and a lot of questions. The weird glitch Recently I was editing some video and I noticed this: Not what the finger is pointing at — the dots. Here are the separate layers this image is made up of: the background is a stock image I’ve licensed from Envato Elements: Because I use it as a background image, I’ve cranked down the exp

AWAmos WengerAmos Wenger·June 27, 2025Design & UX
Frontend — KelpUI

KelpUI

KelpUI is new library that Chris Ferdinandi is developing, designed to leverage newer CSS features and Web Components. I've enjoyed following Chris as he's published an ongoing series of articles detailing his thought process behind the library, getting deep into his approach. You really get a clear picture of his strategy and I love it.

GGGeoff GrahamGeoff Graham·June 26, 2025Frontend
Frontend — Decoding The SVG path Element: Curve And Arc Commands — Smashing Magazine

Decoding The SVG path Element: Curve And Arc Commands — Smashing Magazine

On her quest to teach you how to code vectors by hand, Myriam Frisano’s second installment of a `path` deep dive explores the most complex aspects of SVG’s most powerful element. She’ll help you understand the underlying rules and function of how curves and arcs are constructed. By the end of it, your toolkit is ready to tackle all types of tasks required to draw with code — even if some of the li

MFMyriam FrisanoMyriam Frisano·June 23, 2025Frontend
Frontend — CSS Color Functions

CSS Color Functions

CSS has a number of functions that can be used to set, translate, and manipulate colors. Learn what they are and how they are used with a bunch of examples to get you started.

SFSunkanmi FafoworaSunkanmi Fafowora·June 19, 2025Frontend
Engineering — The DeepSeek Series: A Technical Overview

The DeepSeek Series: A Technical Overview

The appearance of DeepSeek Large-Language Models has caused a lot of discussion and angst since their latest versions appeared at the beginning of 2025. But much of the value of DeepSeek's work comes from the papers they have published over the last year. This article provides an overview of these papers, highlighting three main arcs in this research: a focus on improving cost and memory efficienc

SMShayan Mohanty·June 18, 2025Engineering
AI & ML — Introducing Roast: Structured AI workflows made easy (2025) - Shopify

Introducing Roast: Structured AI workflows made easy (2025) - Shopify

Roast is a convention-oriented workflow orchestration framework designed specifically for creating structured AI workflows that interleave AI prompting with normal non-AI execution. It provides a declarative approach primarily using YAML configuration and markdown prompts, giving AI agents the guardrails they need to solve developer productivity problems at scale.

SEShopify Engineering·June 18, 2025AI & ML
Frontend — How to Keep Up With New CSS Features

How to Keep Up With New CSS Features

How do you stay informed of new CSS features when the language evolves quickly and information is spread all around the web? Sacha Greif has some tips from his work running an annual survey focused on new CSS features.

SGSacha GreifSacha Greif·June 17, 2025Frontend
Design & UX — Welcoming Payload to the Figma team

Welcoming Payload to the Figma team

We're thrilled to announce that the team behind Payload, a leading open-source headless content management system (CMS) and application framework, has joined Figma.

KRKris Rasmussen·June 17, 2025Design & UX
Performance — A Better API for the Resize Observer

A Better API for the Resize Observer

ResizeObserver, MutationObserver, and IntersectionObserver enhance performance over their predecessors. Zell discusses their API similarities, usage steps, refactoring strategies, and advantages with practical examples.

ZLZell LiewZell Liew·June 16, 2025Performance
Engineering — Highlights from Git 2.50

Highlights from Git 2.50

The open source Git project just released Git 2.50. Here is GitHub’s look at some of the most interesting features and changes introduced since last time.

TBTaylor BlauTaylor Blau·June 16, 2025Engineering
AI & ML — Cloudflare service outage June 12, 2025

Cloudflare service outage June 12, 2025

Today, June 12, 2025, Cloudflare suffered a significant service outage that affected a large set of our critical services, including Workers KV, WARP, Access, Gateway, Images, Stream, Workers AI, Turnstile and Challenges, AutoRAG, and parts of the Cloudflare Dashboard.

JHJeremy Hartman, Cj DesaiJeremy Hartman, Cj Desai·June 12, 2025AI & ML
Engineering — Celebrating 11 years of Project Galileo’s global impact

Celebrating 11 years of Project Galileo’s global impact

June 2025 marks the 11th anniversary of Project Galileo, Cloudflare’s effort to protect vulnerable public interest organizations from cyber threats. To celebrate, we’re sharing a new Radar report, expanding in Asia with two new partners, and highlighting stories from organizations on the front lines.

JJocelynJocelyn·June 12, 2025Engineering
Frontend — Breaking Boundaries: Building a Tangram Puzzle With (S)CSS

Breaking Boundaries: Building a Tangram Puzzle With (S)CSS

We put it to the test and it turns out Sass can replace JavaScript, at least when it comes to low-level logic and puzzle behavior. With nothing but maps, mixins, functions, and a whole lot of math, we managed to bring our Tangram puzzle to life, no JavaScript required.

SSSladjana StojanovicSladjana Stojanovic·June 12, 2025Frontend