## Benefits of Web Standards

"Be liberal in what you accept, and
conservative in what you send"

"Postel's Law" or the "Robustness Principle"

### Standards

- Markup (HTML)
  Nu Html Checker
  `https://validator.w3.org/nu/`
- Style (CSS)
  CSS Validation Service
- Function (JavaScript)

Benefits:

- Improved Accessibility
  - People
  - Machines
    - Search Engines
    - Devices
- Stability
  - Forward-compatible and backward-compatible.
- Separation of Concerns (Structure, Style, Function)
  - simpler, cleaner pages
  - easier maintenance
  - easier redesign
- Validation