Introduction to Accessibility
- Impacts of Accessibility
- Disability Inclusion
- Standards and Laws
  - Global Perspectives
- Teams and Programs
- Introductions to Specific Disabilities
- A "Day in the Life" by disability
- Accessibility-related Personas
- Understanding digital accessibility
- Understanding physical accessibility
- Understanding accessibility in specific contexts
Content Accessibility
- Accessible Content Creation & Design
- Writing Accessible Content
- Multimedia Accessibility
- Accessible Alternatives
Web Accessibility
- Page structure
- Language identification
  - Introduction
- Keyboard navigation
  - Introduction
- Keyboard focus
- Links
  - Visually Distinct Links
- Images & Non-text content
  - Images of Text
  - Background Images
- Data & Data Visualizations
- Tables & Lists
- Forms
  - Form Purpose
  - Provide Autocomplete Values
- Color, Contrast, and Single Sense
- Pointer & Other Inputs
- Dynamic Content
- Moving Content
- Consistency & Familiarity
- Authentication
- User Control
  - Zoom and Reflow
  - Text Size and Spacing
- Timeouts and Time Limits
- Site Structure
- Screen Reader Verification
- Reference Material
Design & Development
- Planning
- Design
- Development
  - Semantic Markup
- Development with ARIA
- Test & Evaluation
- Lifecycle Maintenance
Content Mgmt Systems (CMS) Accessibility
- Common Concepts in CMS Accessibility
- WordPress
- Drupal
- GoDaddy
- Shopify
- Wix
- Squarespace
Learning Mgmt Systems (LMS) Accessibility
- Common Concepts in LMS Accessibility
- Canvas
Social Media Accessibility
- Common Concepts in Social Media Accessibility
- Social Media Platforms
- Email Marketing Services
Document, Spreadsheet, Presentation, and Email Accessibility
- Common Concepts
- Documents
- Spreadsheets
- Presentations
- Emails
Digital Accessibility Testing
- Test Tools
- How to Test
- Accessibility Testing with a Disability
Assistive Technology
- Introduction
- Screen Readers
  - Screen Reader Resources
- Screen Magnifiers
- Narrators (Text-to-Speech)
- Dictation (Speech-to-Text)
- Keyboard Alternatives
- Alternate Displays
Events & Meetings
- Virtual (Remote)
- In-Person
Physical Accessibility
- Outdoors
  - Introduction to Parking
- Public Ways and Accessible Routes
- Entries and Exits
- Indoor Spaces
- Floors, ground, or walking surfaces
- Moving around, up, or down
  - Introduction to Exterior and Interior Signs
  - Laws and Standards for Exterior and Interior Signs
- Communications
- Emergency planning
- Tools and Elements
- Controls/Operable Parts
- Machines and kiosks
- Restrooms, dressing rooms, and locker rooms
- Kitchens
- Housing
- Offices
- Justice-related
- Retail and service
- Specific rooms and facilities
- Vehicles
- Assessing Accessibility
- Accessibility Practices
- Accessible Design in Action
- Interactives
- Glossary terms
Point of Service Accommodations
- Customer Accommodations
- Employee Accommodations
Accessibility in Education
- Pedagogy and access
- Tools and structures
Specific Topics
- Artificial Intelligence
- Inclusive Algorithms
- Inclusive Play & Gaming
- Safety
- Mental health
- Day-to-Day Practices
Accessibility Mythbusting and Fails

Semantic Markup

1 minute read

Last updated: Feb 23, 2026

Semantic Markup

Summary

Semantic markup is a way of writing code to reflect the meaning of the content. Assistive technologies rely on semantic markup to understand content. This reliance means it is critical for code to have semantically correct markup.

For example: a heading is semantically correct if it is coded as a heading. If a heading is coded as a paragraph with large text, then its appearance is different from its meaning. Devices like screen readers will not understand this is a heading.