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Accessible Web Design Course
More than 2 million students worldwide

Accessible Web Design Course

Build websites that work for everyone — including the one in five people living with a disability. This course takes you from core accessibility principles to hands-on auditing, covering semantic HTML, ARIA, keyboard navigation, colour contrast, and inclusive forms. Whether you design, develop, or manage digital products, you'll finish with the skills to meet WCAG standards and create experiences no user gets locked out of.

Dedika for businesses

What you will learn:

  • Apply the four POUR principles to evaluate and improve any web interface.

  • Write semantic HTML and ARIA markup that screen readers interpret accurately.

  • Design keyboard-accessible interfaces with logical focus order and visible focus indicators.

  • Meet WCAG colour contrast and visual design requirements for low-vision users.

  • Build accessible forms with clear labels, inline validation, and error recovery patterns.

  • Conduct structured accessibility audits using automated tools and manual testing techniques.

How you study in practice Accessible Web Design Course

How you practise Accessible Web Design Course

For businesses looking to train their team

With Dedika for businesses, the course includes exercises and examples tailored to your own business and the way your company needs.

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Course content

8 Chapters • 40 LessonsDuration between 4 and 360 hours (you decide)

Chapter 1See details

Foundations of Web Accessibility

  • Lesson 1 • The Business and Ethical Case

    Presents moral, social, and commercial arguments for accessibility. Motivates learners to treat accessibility as a professional priority.

  • Lesson 2 • Global Accessibility Standards Overview

    Surveys international guidelines and conformance frameworks. Connects regulatory expectations to practical design decisions.

  • Lesson 3 • Disability Perspectives and User Research

    Examines how different users experience the web. Builds empathy and sets up user-centred methods used in later chapters.

  • Lesson 4 • The Four POUR Principles

    Introduces Perceivable, Operable, Understandable, and Robust as the organising framework. Provides the lens used throughout the entire course.

  • Lesson 5 • What Web Accessibility Means

    Defines accessibility as removing barriers for users with disabilities. Grounds the chapter by distinguishing usability from accessibility.

Chapter 2See details

Semantic HTML for Accessibility

  • Lesson 1 • Accessible Images and Media Elements

    Covers alt text, figures, and embedded media markup. Connects visual content to text equivalents for non-visual users.

  • Lesson 2 • Why Semantics Drive Accessibility

    Explains how browsers and assistive technologies parse HTML semantics. Establishes why correct element choice outweighs visual styling.

  • Lesson 3 • Accessible Lists, Tables, and Data

    Teaches correct markup for lists and complex data tables. Ensures screen reader users receive accurate structural context.

  • Lesson 4 • Document Structure and Landmarks

    Covers heading hierarchy, landmark elements, and page regions. Enables users to navigate documents efficiently with assistive technology.

  • Lesson 5 • Accessible Links and Buttons

    Distinguishes link and button semantics and their correct usage. Prevents common errors that break keyboard and screen reader interaction.

Chapter 3See details

ARIA: Roles, States, and Properties

  • Lesson 1 • ARIA Design Patterns in Practice

    Applies ARIA patterns to real components like tabs, accordions, and menus. Bridges specification knowledge to production-ready implementation.

  • Lesson 2 • Landmark and Widget Roles

    Covers ARIA landmark roles and interactive widget roles. Enables correct role assignment for custom UI components.

  • Lesson 3 • ARIA Fundamentals and Rules

    Introduces the ARIA specification and its five rules of use. Prevents misuse by grounding learners in when ARIA is and is not appropriate.

  • Lesson 4 • ARIA States and Live Regions

    Teaches dynamic state attributes and live region announcements. Ensures assistive technologies communicate real-time interface changes.

  • Lesson 5 • Naming and Describing Controls

    Explains accessible name computation and description techniques. Ensures every interactive element has a meaningful, programmatically determined label.

Chapter 4See details

Keyboard Accessibility and Focus Management

  • Lesson 1 • Visible Focus Indicators

    Teaches design and implementation of clear focus styles. Addresses the WCAG requirement for perceivable focus and contrast.

  • Lesson 2 • Skip Links and Bypass Mechanisms

    Designs bypass blocks that let keyboard users skip repetitive content. Directly addresses the WCAG bypass blocks success criterion.

  • Lesson 3 • Keyboard Navigation Fundamentals

    Covers how users navigate with Tab, arrow keys, and shortcuts. Establishes the baseline keyboard contract all interfaces must fulfil.

  • Lesson 4 • Managing Focus in Dynamic Interfaces

    Covers programmatic focus control for modals, alerts, and SPAs. Prevents focus loss and disorientation during dynamic content updates.

  • Lesson 5 • Custom Keyboard Interaction Patterns

    Implements keyboard behaviour for custom widgets using ARIA authoring patterns. Ensures non-native components meet expected keyboard conventions.

Chapter 5See details

Colour, Contrast, and Visual Design

  • Lesson 1 • Colour Contrast Requirements

    Explains contrast ratio calculations and WCAG thresholds for text and UI. Enables designers to verify and correct contrast before launch.

  • Lesson 2 • Colour Independence in Design

    Teaches how to convey information without relying solely on colour. Prevents exclusion of users with colour vision deficiencies.

  • Lesson 3 • Responsive and Zoom-Friendly Layouts

    Designs layouts that reflow at 400% zoom without horizontal scrolling. Ensures low-vision users can magnify content without losing functionality.

  • Lesson 4 • Typography and Readability

    Covers font size, line height, spacing, and typeface selection for readability. Supports users with low vision and cognitive disabilities.

  • Lesson 5 • Motion, Animation, and Flashing Content

    Addresses WCAG requirements for motion control and seizure prevention. Protects users with vestibular disorders and photosensitive epilepsy.

Chapter 6See details

Accessible Forms and Error Handling

  • Lesson 1 • Accessible Input Types and Controls

    Selects appropriate HTML input types for each data entry scenario. Leverages native browser behaviour to reduce custom ARIA overhead.

  • Lesson 2 • CAPTCHA and Authentication Accessibility

    Evaluates CAPTCHA barriers and accessible authentication alternatives. Ensures security mechanisms do not exclude users with disabilities.

  • Lesson 3 • Inline Validation and Error Messages

    Implements real-time and on-submit validation with accessible announcements. Prevents users from submitting incomplete forms without clear guidance.

  • Lesson 4 • Complex Form Patterns

    Addresses multi-step forms, conditional fields, and dynamic inputs. Maintains accessibility as form complexity increases.

  • Lesson 5 • Form Labels and Instructions

    Covers programmatic label association and contextual instructions. Ensures every input has a visible, persistent, and accessible label.

Chapter 7See details

Multimedia and Rich Content Accessibility

  • Lesson 1 • Accessible Media Players

    Evaluates and configures media players for keyboard and screen reader use. Ensures playback controls are operable without a mouse.

  • Lesson 2 • Transcripts and Audio Descriptions

    Teaches full transcripts for audio and audio descriptions for visual video content. Extends access to blind users and those who cannot play media.

  • Lesson 3 • Accessible Data Visualisations

    Applies techniques to make charts, graphs, and infographics accessible. Provides text alternatives and keyboard navigation for visual data.

  • Lesson 4 • Captions for Video Content

    Covers closed and open caption creation, formatting, and synchronisation. Serves deaf, hard-of-hearing, and non-native language users.

  • Lesson 5 • PDFs and Document Accessibility

    Covers tagging, reading order, and accessibility checks for PDF documents. Ensures downloadable content meets the same standards as web pages.

Chapter 8See details

Testing, Auditing, and Remediation

  • Lesson 1 • Remediation Planning and Regression Prevention

    Converts audit findings into a prioritised fix roadmap. Embeds accessibility checks into workflows to prevent future regressions.

  • Lesson 2 • Screen Reader Testing

    Guides testing with major screen readers across operating systems. Validates that semantic markup and ARIA produce correct announcements.

  • Lesson 3 • Manual Testing Techniques

    Teaches keyboard-only navigation checks and visual inspection methods. Covers the majority of issues that automated tools miss.

  • Lesson 4 • Conducting an Accessibility Audit

    Structures a full WCAG-based audit from scoping to reporting. Produces actionable findings that development teams can prioritise.

  • Lesson 5 • Automated Accessibility Testing Tools

    Surveys browser extensions, linters, and CI pipeline tools for automated checks. Establishes what automation can and cannot detect.

Certification

Your valid completion certificate

This course is for you:

  • Front-end developer: wants to write code that no user gets blocked by.

  • UX designer: ready to move beyond aesthetics and design for real inclusion.

  • Product manager: needs to understand accessibility risk before it becomes liability.

  • Career changer: building a portfolio that stands out in a competitive job market.

  • QA engineer: looking to add accessibility testing to an existing skill set.

  • Freelance web builder: clients are starting to ask about compliance and standards.

What our students say

Your lessons are perfect. I purchased the one-year package and finally have the opportunity to follow various topics of interest without needing to change platforms... I'm grateful for everything you do, I've already recommended you to other people...
Giulio Carlo
Giulio CarloDigital Marketing Student
I like how the lessons are straight to the point and how I can change chapters and skip content I don't need.
Mariana Ferres
Mariana FerresPhotography Student
I like the content and the way videos are presented and transcribed, which speeds up the process!
Luciana Alvarenga
Luciana AlvarengaNail Design Student
The platform is fast and simple to use. The diversity of content and complementary videos really help with learning.
André Felipe
André FelipePrompt Engineering Student

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