Semantic HTML Best practices for AccessibilitySemantic HTML is necessary as certain elements have different properties which will help you [as well as other users].
ARIA Not the Meloetta you're looking for.Accessible Rich Internet Applications [ARIA] is a set of attributes that you can add to elements to provide more context to assistive technologies.
ARIA Live Regions Change content - one calamity at a time.ARIA live regions are parts of a webpage which announce to its users if the content dynamically changes.