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Principle 2: Interface elements in the content must be operable.

Guidelines for this principle:

• Guideline 2.1 Make all functionality operable via a keyboard or a keyboard interface.
• Guideline 2.2 Allow users to control time limits on their reading or interaction.
• Guideline 2.3 Allow users to avoid content that could cause photosensitive epileptic seizures.
• Guideline 2.4 Provide mechanisms to help users find content, orient themselves within it, and navigate through it.

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