css Audio - Active file-generic CSS - Active Generic - Active HTML - Active JS - Active SVG - Active Text - Active file-generic Video - Active header Love html icon-new-collection icon-person icon-team numbered-list123 pop-out spinner split-screen star tv
CodePen probably won't work great in this browser. We generally only support the major desktop browsers like Chrome, Firefox, Safari, and Edge. Use this one at your own risk! If you're looking to test things, try looking at Pens/Projects in Debug View.

Posts tagged syntax

Thoughts on a Syntax for Element Queries

It's possible to think of Element Queries as a natural extension to CSS Media Queries. I would summarize the requirements for media queries like this:

a media type

query condition(s)


Tips for a Good Time When Extending CSS

Each of the points below have lived on a whiteboard in my house for months. I see them each day as I think about how CSS can be extended, and what the best way to design extensions to the web...

Code That You Just Never Ever Need to Write

The aim of this blog post is to point out some of the often overlooked syntax features already present in HTML and CSS that can make writing code easier. People sometimes reach for things like...