Web Design for everybody-HTML 5(03).md

1. Web Accessibility

Accessibility

Making the web accessible for the widest possible audiences
One in 5 People have a disability

There are 60 million people with disabilities in the U.S.

Half are impeded using the internet.
- Visual Issues
  - Blindness, low-vision, color-blindness
  - How is your font-size, color-contrast, font-style?
- Hearing Issues
  - Partial to total deafness
  - **Do your videos include closed-captioning? Are you blaring music? **
- Motor Issues
  - Inability to use a mouse or physical keyboard, slow response time, limited fine motor control.
  - What happens when someone tries to “tab” through your page? Do you require a steady hand?
- Cognitive Issues
  - Learning disabilities, distractibility, dyslexia, inability to remember or focus on large amounts of information
  - ADD 全称是注意力缺失症 ADHD 全称是注意力缺陷多动症
    
    TBI: traumatic brain injury
    
    PTSD: post-traumatic stress disorder
  - Things easy to understand, not flashing, not requiring great amounts of concentration.
Legal
- DOJ is in the process of revising the Americans with Disabilities Act Title ⅠⅡ to include online resources of state and local entities.
- Case Law: individuals or entities can file civil rights complaints.
Standards & Principles
- W3C Web Content Accessibility Guidelines:
  - Perceivable
  - Operable
  - Understandable
  - Robust
Validator
- W3C Validator
  - Validate by URL
  - Validate by Filename
  - Validate by Direct Input
- Browser Check
  - Browser Accessibility Check
- Accessibility
  - only online pages
  - funkify
    - Funkify is a brand new extension for Chrome that helps you experience the web and interfaces through the eyes of extreme users with different abilities and disabilities.
      
      Funkify is created by a team of usability and accessibility experts in Sweden. The project is financed by The Swedish Post and Telecom Authority (Post och telestyrelsen, PTS).
    - persona

2. Hosting Your Site

Domain names
- Typically purchased for multiple years at cheap rate.
- Most common is .com, but other extensions are gaining acceptance.
- Domain names are useless on their own.
Hosting
- IP address to connect with your domain name.
- Hosting services:
  - Free
    - little/no control of domain name
    - limited tools
    - advertising and redirects
    - familiar look and feel across them
  - Mid-range&Full-service
    - Tend to have better tools
    - Support is available
- GitHub
  - How to create a GitHub page?
  - How to upload a Github page?