If you have a help option, make sure it’s consistently available and in the same relative place on each page. This will make it easy to find as users navigate your website. What you need to know Access to help mechanisms may be provided directly on the page or may be provided by a link […]
Make sure the area that receives focus stands out from the background. What you need to know As you tab through a webpage using the keyboard, a focus indicator visually lets you know where you are on the page. This success criterion requires the focus indicator to meet a minimum level of contrast and size. […]
No loss of content or functionality should occur if the user adjusts a line, word, or letter spacing.
Make sure you have a minimum 3:1 color contrast ratio for user interface components and states and graphical objects that convey meaningful information.
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.