"The Semantic HTML & Accessibility course is designed for web developers and designers who want to build inclusive, high-performing websites using modern HTML standards. Even if you're new to accessibility or haven't explored semantic markup in depth, this course will guide you step by step to create structured, accessible, and search-optimized web content.
Semantic HTML & Accessibility
Semantic HTML & Accessibility
This course is part of Modern Web Development: Advanced HTML & CSS Specialization
Instructor: Board Infinity
Included with 
Gain insight into a topic and learn the fundamentals.
Intermediate level
Recommended experience
14 hours to complete
3 weeks at 4 hours a week
Flexible schedule
Learn at your own pace
What you'll learn
Build semantic, structured web pages using HTML5 and landmark elements
Apply ARIA roles and keyboard navigation to improve web accessibility
Optimize website performance using Core Web Vitals and responsive markup
Create modern, accessible UI features using <dialog>, PWAs, and Web Components
Skills you'll gain
Details to know
Shareable certificate
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Recently updated!
June 2025
Assessments
12 assignments
Taught in English
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This course is part of the Modern Web Development: Advanced HTML & CSS Specialization
When you enroll in this course, you'll also be enrolled in this Specialization.
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There are 3 modules in this course
This module lays the foundation for writing meaningful, standards-compliant HTML that not only structures content effectively but also enhances accessibility and search engine visibility. You’ll begin by understanding what makes HTML “semantic” and how it differs from non-semantic markup. Then, you’ll explore how to use document landmarks, headings, and ARIA roles to create a clear, navigable structure for both users and assistive technologies. Finally, the module dives into accessibility fundamentals, covering best practices for ARIA attributes, keyboard navigation, and common testing tools—empowering you to build inclusive websites from the ground up.
What's included
11 videos4 readings4 assignments1 discussion prompt
This module focuses on how semantic HTML contributes to faster, more stable, and responsive web experiences. You'll explore Core Web Vitals—LCP, CLS, and INP—and understand their impact on real-world performance. Through practical techniques like image optimization, lazy loading, and responsive markup, you’ll learn to deliver lightweight and visually stable pages across devices. The module also covers modern native HTML features such as <dialog>, accessible popovers, and form enhancements to improve interactivity without relying heavily on JavaScript frameworks. By the end of this module, you'll be equipped to build efficient, user-friendly, and inclusive web interfaces.
What's included
10 videos3 readings4 assignments
In this module, you’ll explore how semantic HTML integrates with modern web technologies to create scalable, maintainable, and globally accessible websites. You’ll begin with the fundamentals of Progressive Web Apps (PWAs), learning how to configure web app manifests and implement service workers for offline support. Then, you’ll dive into Web Components and Shadow DOM to build reusable, encapsulated HTML elements. Finally, the module covers SEO optimization using structured data and strategies for internationalizing your content for global audiences. These modern enhancements will help you future-proof your websites while maintaining accessibility and semantic integrity.
What's included
11 videos3 readings4 assignments
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Frequently asked questions
Basic knowledge of HTML is helpful, but you don’t need to be an expert. The course walks you step by step through semantic tags, accessibility, and modern web concepts.
You’ll work with HTML5, ARIA roles, Core Web Vitals, native HTML elements like <dialog>, Web Components, PWAs, and structured data using JSON-LD.
The course takes approximately 13–17 hours. You can complete it at your own pace, typically in 3–4 weeks with 4–5 hours per week.
More questions
Financial aid available,