3.3.3 Error Suggestion
Make suggestions on how to fix form errors if an input error is automatically detected.
3.2.3 Consistent Navigation
Keep your navigation menu placement and order consistent throughout your website.
3.2.1 On Focus
Nothing on a website should automatically change just because it receives focus.
2.4.5 Multiple Ways
There needs to be more than one way to find a web page within your website.
2.3.1 Three Flashes or Below Threshold
Nothing on a webpage should flash more than three times in a second.