Uploaded November 2025 | Updated September 2026, 2 weeks ago
A big thank you to Michael Warren for creating and then walking me through using this web component!
🧑💻The web component: github.com/kevin-powell/form-groups-wc
🔗 The resources he mentioned:
✅ Lit: https://lit.dev/
✅ Web Awesome: webawesome.com
✅ Shoelace: https://shoelace.style/
✅ Adobe's design system Spectrum: spectrum.adobe.com
Follow Michael:
✅ https://michaelwarren.dev/
✅ https://bsky.app/profile/michaelwarren.dev
✅ linkedin.com/in/mwarren1106
✉ Keep up to date with everything I'm up to kevinpowell.co/newsletter
💬 Come hang out with other devs in my Discord Community discord.gg/nTYCvrK
⭐ Are you a beginner? HTML & CSS for absolute beginners is for you: 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/
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Help support my channel
👨🎓 Get a course: kevinpowell.co/courses
👕 Buy a shirt: cottonbureau.com/people/kevin-powell
💖 Support me on Patreon: patreon.com/kevinpowell or through YT memberships: youtube.com/@KevinPowell/join
---
🧑💻 My editor: VS Code - code.visualstudio.com
🌈 My theme: One Dark Pro Var Night
🔤 My font: Cascadia Code
---
⌚Timestamps
00:00 - Introduction
03:02 - Creating Custom Elements
06:11 - Understanding Shadow DOM
08:54 - Lifecycle Hooks in Web Components
12:03 - Event Listeners and Memory Management
14:45 - Implementing Validation Logic
17:50 - Error Handling and User Feedback
36:13 - Defining Properties and Error Handling
39:10 - Customizing Error Messages
49:42 - Styling Web Components
01:00:18 - Enhancing User Experience with CSS Parts
01:10:06 - Resources for Learning Web Components
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: codepen.io/kevinpowell
Github: 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!
A big thank you to Michael Warren for creating and then walking me through using this web component!
🧑💻The web component: github.com/kevin-powell/form-groups-wc
🔗 The resources he mentioned:
✅ Lit: https://lit.dev/
✅ Web Awesome: webawesome.com
✅ Shoelace: https://shoelace.style/
✅ Adobe's design system Spectrum: spectrum.adobe.com
Follow Michael:
✅ https://michaelwarren.dev/
✅ https://bsky.app/profile/michaelwarren.dev
✅ linkedin.com/in/mwarren1106
✉ Keep up to date with everything I'm up to kevinpowell.co/newsletter
💬 Come hang out with other devs in my Discord Community discord.gg/nTYCvrK
⭐ Are you a beginner? HTML & CSS for absolute beginners is for you: 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: kevinpowell.co/courses
👕 Buy a shirt: cottonbureau.com/people/kevin-powell
💖 Support me on Patreon: patreon.com/kevinpowell or through YT memberships: youtube.com/@KevinPowell/join
---
🧑💻 My editor: VS Code - code.visualstudio.com
🌈 My theme: One Dark Pro Var Night
🔤 My font: Cascadia Code
---
⌚Timestamps
00:00 - Introduction
03:02 - Creating Custom Elements
06:11 - Understanding Shadow DOM
08:54 - Lifecycle Hooks in Web Components
12:03 - Event Listeners and Memory Management
14:45 - Implementing Validation Logic
17:50 - Error Handling and User Feedback
36:13 - Defining Properties and Error Handling
39:10 - Customizing Error Messages
49:42 - Styling Web Components
01:00:18 - Enhancing User Experience with CSS Parts
01:10:06 - Resources for Learning Web Components
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: codepen.io/kevinpowell
Github: 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!
