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Announcing the Mozilla Developer Channel

a gift from Mozilla (and OddBird)

Over the summer, we’ve been working with Mozilla to help create a new resource for web professionals like us – with a mix of videos, articles, demos, and open source tools. Today, we’re excited to launch the video channel!

The project will include short videos, articles, demos, and tools that teach web technologies and standards, browser tools, compatibility, and more. No matter your experience level or job description, we’re all working together towards the future health of the web, and Mozilla is here to help.

Today we’re launching a [new video channel], with a selection of shorts to kick things off. There are two in our “about:web” series on web technologies, and one in our “Firefox” series on browser tools for web professionals.

Get started with an intro to Dark Mode on the web, by Deja Hodge – and check out her dark mode demo.

Dark mode is all the rage, with iOS, macOS, Android and others all shipping a system-wide dark mode for people’s devices.

Jen Simmons shows us how to access a handy third-panel in the Firefox Developer Tools, and toggle print preview mode.

Use that third pane to quickly access the Grid or Flexbox Inspectors, the Font Editor, the Animations Tools, Tracked Changes, and more.

Use that third pane to quickly access the Grid or Flexbox Inspectors, the Font Editor, the Animations Tools, Tracked Changes, and more.

If you’ve ever struggled to style lists with customized bullets and numbers, Miriam Suzanne has a video all about the ::marker pseudo-element and list counters. Watch the video, and go play with the demo on CodePen.

Style list markers, and add your own counters!

To celebrate the launch, we’ll be releasing new videos every day this week! Check back to learn about several more Firefox tools like Screenshots and the CSS Track Changes panel, and a reflection on what makes CSS so weird. Over the next few months we’ll have new videos weekly (subscribe to the channel!), along with more articles, demos, and some exciting new open source tools.

Upcoming Workshop

Mia from behind,
standing at a laptop -
speaking to a conference audience
and gesturing to one side

Cascading Style Systems

A workshop on resilient & maintainable CSS

New CSS features are shipping at an unprecedented rate – cascade layers, container queries, the :has() selector, subgrid, nesting, and so much more. It’s a good time to step back and understand how these tools fit together in a declarative system – a resilient cascade of styles.

Register for the October workshop »

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