WCAG are the Web Content Accessibility Guidelines. You should check out the full reference if you’re developing a website .

Here are the most basic points:

  • All non-text content needs to have a text alternative that serves the equivalent purpose.
  • Text needs to have a contrast ratio of at least 4.5:1.
  • All functionality of the content needs to be operable through a keyboard
  • There needs to be a mechanism to bypass blocks of content that are repeatet on multiple web pages
  • Prefer native elements over fancy JS
  • Prefer special html element over div (i.e. main or nav)
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