Designers

1.4.12 Text Spacing

 

No loss of content or functionality should occur if the user adjusts a line, word, or letter spacing.

Designers, Developers

1.4.11 Non-text Contrast

 

Make sure you have a minimum 3:1 color contrast ratio for user interface components and states and graphical objects that convey meaningful information.

Designers

1.4.10 Reflow

 

No loss of content or functionality should occur on mobile devices at 320 pixels width. No horizontal scrolling should be necessary unless content cannot be resized effectively.