W3C HTML Validator

Web Accessibilty Checklist
User Characteristic Accessibilty Design Tip
Unable To See Code all Images with ALT Text
Unable To Perceive Colors Avoid Using Color Alone To Convey Information
Unable To Use Mouse Make Sure All Website Featuers Can Be Accessed Using The Keyboard
Unable To Hear Add Captions To Multimedia
Prone To Having Seizures Avoid Content That Flashes
Easily Distractable Keep The Design Simple