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.
1.1.1 Non-text Content
Images must have descriptive alternative text.
1.2.1 Audio-only and Video-only (Pre-recorded)
Any audio-only content must also be conveyed in text. Any video content with no audio track must also be described in text, but could also be described with audio.
1.2.2 Captions (Pre-recorded)
The audio in videos must be captioned.
1.2.3 Audio Description or Media Alternative (Pre-recorded)
Actions, descriptions, and other important non-audio content in videos must be described in captions, a separate audio track, or a text-based alternative like a screenplay.
1.3.1 Info and Relationships
Information or relationships between content that is visual is also conveyed through the code, via HTML or ARIA (for example the for attribute on a form label, or aria-describedby on an input that has hint text).
1.3.2 Meaningful Sequence
The visual presentation of the content matches what’s read out by a screen reader.
1.3.3 Sensory Characteristics
Nothing is referred to just by its color, size, position, shape, and so on.
1.4.1 Use of Color
Color must not be the only thing used to convey meaning.
1.4.2 Audio Control
Auto playing audio that lasts more than 3 seconds can be turned down or stopped.
2.1.1 Keyboard
Can you get around using the keyboard alone.
