3.3.3 Error Suggestion (Level AA)
Make suggestions on how to fix form errors if an input error is automatically detected.
3.3.2 Labels or Instructions (Level A)
For any element that requires user input or action, provide concise labels and/or instructions.
3.3.1 Error Identification (Level A)
When any input error is automatically detected, alert the user, describe the error, and provide instructions on how to correct it.
3.2.4 Consistent Identification (Level AA)
Page components (for example links, buttons and icons) that have the same functionality should be consistently identified with labels, names, and text alternatives throughout your website.
3.2.3 Consistent Navigation (Level AA)
Keep your navigation menu placement and order consistent throughout your website.