Web Components and Custom Elements
Free Intermediate course · 10 lessons · 3 weeks · Certificate on completion
Build framework-agnostic UI components with custom elements and shadow DOM. Across 10 lessons you'll move from fundamentals to a portfolio-ready outcome — at your own pace, with quizzes after each lesson and a final exam to certify your mastery.
What you'll learn
- Why web components
- Custom elements
- Shadow DOM
- Templates and slots
- Attributes and properties
- Styling and theming
Skills you'll pick up
- Why web components
- Custom elements
- Shadow DOM
- Templates and slots
- Attributes and properties
- Styling and theming
Tools covered
- Web Components
- Real-world projects
- Quizzes
- Final exam
Course modules
Module 1: Why web components
Module 1 of Web Components and Custom Elements. 3 lessons · 3h
Module 2: Templates and slots
Module 2 of Web Components and Custom Elements. 3 lessons · 3h
Module 3: Events
Module 3 of Web Components and Custom Elements. 2 lessons · 2h
Module 4: Using components in frameworks
Module 4 of Web Components and Custom Elements. 2 lessons · 2h
Lessons in this course
- Why web components
- Custom elements
- Shadow DOM
- Templates and slots
- Attributes and properties
- Styling and theming
- Events
- Lit library
- Using components in frameworks
- Publishing a component library
Instructor
Chloe Martin — Frontend Architect
Chloe Martin is a Frontend Architect with years of hands-on experience teaching Web Components to thousands of learners worldwide.
Certificate
Finish every lesson and pass the final exam to earn a free, verifiable Learnera certificate for Web Components and Custom Elements. It can be downloaded as a PDF and shared on LinkedIn.
Career outcomes
Median global salary $115,000 per year · median India salary ₹16,10,000 per year · 108,927 open roles worldwide
- Web Components Specialist
- Senior Web Components Lead
- Web Components Consultant
Frequently asked questions
Is the Web Components and Custom Elements course free?
Yes. Every Learnera course, including Web Components and Custom Elements, is completely free — lessons, quizzes, the final exam, and the certificate.
How long does Web Components and Custom Elements take?
10 lessons, typically completed in 3 weeks at a comfortable pace.
Do I get a certificate?
Yes — pass the final exam and you receive a free, verifiable certificate you can share on LinkedIn.