CSS container queries have landed as an experiment in Chrome Canary! You can enable them under chrome://flags.

Have you had a chance to experiment with them yet? How do you feel about them being available in CSS?

Resources if you're just hearing about them now:

• Miriam Suzanne is the proposal author, and you should start with her explainer
• Check out her CodePen collection of demos
• You might like highlights from my Twitch stream of exploring them for the first and second time
• A quick start guide from David A. Herron
• Ahmad Shadeed's excellent overview with practical examples
• And links to more within Stu Robson's repo Awesome-Container-Queries