This custom property trick solves a common CSS problem

Having to worry about browser support stinks, but thanks to a simple custom property trick, there’s a really easy way to create fallbacks for older browsers. 🔗 Links ✅ Josh’s website: https://www.joshwcomeau.com/ ✅ Josh’s Bluesky Post that I mention: https://bsky.app/profile/joshwcomeau.com/post/3li3r6i7dac2w ✅ Easing Wizard: https://easingwizard.com/ ✅ Final Code from this video: https://codepen.io/kevinpowell/pen/vEYvBJd ✅ Animating/Transitioning to and from height auto: ✅ I’ve got free and premium courses: https://kevinpowell.co/courses ⌚ Timestamps 00:00 - Introduction 00:10 - What we’re starting with 00:40 - Using the cascade to our advantage 03:00 - You can’t have a fallback to the custom property as a fallback behaviour 05:33 - Josh’s post 05:08 - Using custom properties to make this much easier 07:18 - Different transitions in different directions 08:12 - Other use cases for this #css ✉ Keep up to date with everything I'm up to https://www.kevinpowell.co/newsletter 💬 Come hang out with other devs in my Discord Community https://discord.gg/nTYCvrK ⭐ Are you a beginner? HTML & CSS for absolute beginners is for you: https://learn.kevinpowell.co 🎓 Start writing CSS with confidence with CSS Demystified: [https://cssdemystified.com](https://cssdemystified.com/) 🚀 Already mastered CSS? Check out my advanced course, Beyond CSS: https://www.beyondcss.dev/ --- Help support my channel 👨‍🎓 Get a course: https://www.kevinpowell.co/courses 👕 Buy a shirt: https://cottonbureau.com/people/kevin-powell 💖 Support me on Patreon: https://www.patreon.com/kevinpowell or through YT memberships: https://youtube.com/@KevinPowell/join --- 🧑‍💻 My editor: VS Code - https://code.visualstudio.com/ 🌈 My theme: One Dark Pro Var Night 🔤 My font: Cascadia Code --- I'm on some other places on the internet too! If you'd like a behind the scenes and previews of what's coming up on my YouTube channel: Bluesky: https://bsky.app/profile/kevinpowell.co Codepen: https://codepen.io/kevinpowell/ Github: https://github.com/kevin-powell --- And whatever you do, don't forget to keep on making your corner of the internet just a little bit more awesome!