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Make this fun effect that follows your cursor (pure CSS)
✅ Final code: https://codepen.io/kevinpowell/pen/vENZzBd
✅ More info on corner shape: https://frontendmasters.com/blog/understanding-css-corner-shape-and-the-power-of-the-superellipse/
✅ Odd Bird’s article on fixing issues with anchor positioning: https://www.oddbird.net/2025/01/29/anchor-position-validity/
✅ Easing Wizard: https://easingwizard.com/
✅ Anchor position polyfill: https://github.com/oddbird/css-anchor-positioning
✅ I’ve got courses! https://kevinpowell.co/courses
✉ 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
🚀 Already mastered CSS? Check out my advanced course, Beyond CSS: https://www.beyondcss.dev/
⌚ Timestamps
00:00 - Introduction
00:37 - Basic setup
02:18 - Adding the pseudo-element for the “bubble”
03:30 - My first failed attempt at using anchor positioning
08:12 - How you can animate the anchor position between elements
10:20 - Be careful with position relative and anchor positioning
13:40 - Using calc() with anchor()
16:50 - Fixing the stacking of elements
17:45 - Improving the animation and shapes
20:16 - The cutout effect
#css
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!
View all episodes
By ✅ Final code: https://codepen.io/kevinpowell/pen/vENZzBd
✅ More info on corner shape: https://frontendmasters.com/blog/understanding-css-corner-shape-and-the-power-of-the-superellipse/
✅ Odd Bird’s article on fixing issues with anchor positioning: https://www.oddbird.net/2025/01/29/anchor-position-validity/
✅ Easing Wizard: https://easingwizard.com/
✅ Anchor position polyfill: https://github.com/oddbird/css-anchor-positioning
✅ I’ve got courses! https://kevinpowell.co/courses
✉ 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
🚀 Already mastered CSS? Check out my advanced course, Beyond CSS: https://www.beyondcss.dev/
⌚ Timestamps
00:00 - Introduction
00:37 - Basic setup
02:18 - Adding the pseudo-element for the “bubble”
03:30 - My first failed attempt at using anchor positioning
08:12 - How you can animate the anchor position between elements
10:20 - Be careful with position relative and anchor positioning
13:40 - Using calc() with anchor()
16:50 - Fixing the stacking of elements
17:45 - Improving the animation and shapes
20:16 - The cutout effect
#css
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!