Uses aria attributes to style and validate form inputs
Uses aria-invalid to assign visual error indicators with CSS attribute selectors when validation of field fails.
Summary of errors is placed at the top in an aria-live enabled div.
Inline error indicators are dynamically placed inside individual error form inputs.
Form validation on submission is keyed off of aria-required attributes.
Required field styling is dynamically added from aria-required attributes.
See the demo here: https://offsetchris.github.io/aria-form-validation/