level: A
Level A is the lowest level for meeting WCAG standards, and it provides the most basic support for web accessibility. Successfully implement every success criterion under Level A to achieve this standard.
2.1.2 No Keyboard Trap
There shouldn’t be a situation where you enter a modal with the keyboard and can’t get back to where you were.
2.1.4 Character Key Shortcuts
Keyboard shortcuts should use modifier keys, like ctrl, command, or alt/option.
2.2.1 Timing Adjustable
Time limits should be avoided unless they’re able to be extended.
2.2.2 Pause, Stop, Hide
Automatically moving/animating content that lasts more than 5 seconds should be able to be stopped or hidden.
2.3.1 Three Flashes or Below Threshold
Flashing content must not exceed three flashes per second unless it is within safe limits.
2.4.1 Bypass Blocks
‘Skip links’ are available for keyboard users to jump past navigation.
2.4.2 Page Titled
Each page has a unique title element that describes what’s on that page.
2.4.3 Focus Order
When a keyboard user tabs through a page, the order goes from top to bottom and left to right, as you would read the page.
2.4.4 Link Purpose (In Context)
A link’s destination should be clear from either the link text itself or the surrounding sentence context.
2.5.1 Pointer Gestures
All actions that are carried out using a gesture (swiping, pinching, and so on) or drawing, can also be done with a button or buttons.
