Stub articles

These pages are marked as stubs — they need more detail. Pick one and expand it.

• Ensure touch target have sufficient size and space — read
• Ensures <img> elements have alternate text or a role of none or presentation — read
• Ensures all ARIA attributes have valid values — read
• Ensures an element's role supports its ARIA attributes — read
• Ensures interactive controls are not nested as they are not always announced by screen readers or can cause focus problems for assistive technologies — read
• Ensures links have discernible text — read
• Ensures the contrast between foreground and background colors meets WCAG 2 AA minimum contrast ratio thresholds — read