Polina Gurtovaia
18 minutes read
From individual pixels to fully decoded images on your screen, raw pixel data gets transformed, compressed, and efficiently delivered. Learn about the techniques and optimizations that shrink image information without any perceivable loss in quality.
Joe Walker
3 minutes read
MDN turns 20! Let's look at how we started, how MDN became the most trusted resource for web developers, the impact it's had on the open web, and yes, there's cake, too.
Polina Gurtovaia
17 minutes read
Images help bring more color and life to the web. This post describes how images are represented by humans and on different devices, with details about color spaces and vision theory.
Simon Pieters
4 minutes read
Browsers are starting to roll out changes in default UA styles for nested section headings. This post describes the incoming changes, how to identify if it's an issue on your websites, and hints for conformant and better-structured pages.
Lola Odelola
5 minutes read
Global Privacy Control (GPC) is on the way to becoming a formal privacy standard with the recent publication of its first working draft. Let's take a look at what the implications are for developers and users.
Brian Smith
5 minutes read
A new way to handle dates and times is being added to JavaScript. Let's take a look at Temporal, what problems it solves, the current state, and what you'll find in the new documentation about it on MDN.
DebugBear
10 minutes read
Learn techniques to improve the Largest Contentful Paint metric, a part of Core Web Vitals, for your website.
Vadim Makeev
9 minutes read
Let's have a look at MDN Web Docs content projects in 2024, with highlights of our top picks and recommended reading, and at what's next on MDN for 2025.
Ruth John
4 minutes read
There's a new Learn Web Development section on MDN that merges the MDN Curriculum with the Learn section. Here's the background to these changes, what's new, and what you can expect to see in the future.
Sonal Sood
2 minutes read
Join JavaScriptmas this December for daily coding challenges designed to boost your skills and bring festive fun. Solve challenges on Scrimba, learn something new, and take part for a chance to win exciting prizes!