Our website uses cookies to offer you a better browsing experience, analyse site traffic, personalise content, and serve targeted advertisements. Please visit our Cookie Policy page for more information about cookies and how we use them.

Manage Cookies Accept all cookies
Skip to main content
  • Home
  • News and events
  • Contact Us
CEUD Logo
Menu
  • Centre for Excellence in Universal Design
  • NDA
  • About Us
  • What is Universal Design
  • Built Environment
  • Products & Services
  • Technology
  • Conferences
  • Awards & Education
  1. Home
  2. Technology
  3. Web accessibility techniques
  4. Developer's introduction and index
  5. Design Basics #1 (non technical)
  6. Flash and Flicker

All flashing at once

Flash at 2 HertzFlash at 4 HertzFlash at 20 HertzFlash at 50 Hertz

Back to DEV 1.5 Avoid using flashing, flicker and unnecessary animation

Flash and Flicker

  • About Us
    • Partners & Associates
    • Contact Us
  • What is Universal Design
    • Definition and Overview
    • The 7 Principles
    • Case Studies and Examples
    • Benefits and drivers
    • The 10 Things to Know about UD
    • UD Organisations
    • History of UD
    • Policy and Legislation
    • Submissions
  • Built Environment
    • Launch of The Universal Design Guidelines for Early Learning and Care settings
    • Building for Everyone
    • Housing
    • Shared Space
    • Walkability Audit
    • Shared Education Campuses
    • Homes for Smart Ageing Universal Design Challenge
  • Products & Services
    • Design for All-Accessibility following a Design for All approach in products. goods and services - Extending the range of users
    • Customer Communications Toolkit for the Public Service - A Universal Design Approach
    • Customer Engagement in Energy Services
    • Customer Engagement in Tourism Services
    • Guidelines on Body Size
    • Technical Guidelines for in Home Displays
    • Universal Design Guidance and the ICF
  • Technology
    • Irish National IT Accessibility Guidelines
    • Guidance for Online Public Services
    • IT Procurement Toolkit
    • Web accessibility techniques
    • Web accessibility auditing
    • Measures to Improve Accessibility of Public Websites in Europe
    • Technology for Older People
    • Universal Design for ICT
  • Conferences
    • 2018 Universal Design & Higher Education in Transformation Congress
    • 2015 - Education Across the Continuum: Innovating through Universal Design
    • 2007 Inaugural Conference: "Universal Design for the 21st century: Irish & International Perspectives"
  • Awards & Education
    • Ireland eGovernment Awards
    • Irish Internet Association Awards (IIA)
    • ***Grand Challenge Student Awards***
    • Challenges and Hackathons
    • RIAI Universal Design Award
    • Homes for Smart Ageing Universal Design Challenge
    • IDI Design Awards
    • Education

National Disability AuthorityYoutube icon

© 2020 National Disability Authority, 2020. All rights reserved.

  • Home
  • News and events
  • Contact Us
  • Cookie Management
  • Privacy
  • Disclaimer
  • Accessibility Statement
  • Copyright
  • Sitemap

Centre for Excellence in Universal Design

25 Clyde Road, Dublin 4, Ireland, Location Map

Phone: (01) 6080 456.

Fax: (01) 6609 935

info@ceud.ie