- role attribute describes the role of an element in programs that can make use of it, such as screen readers or magnifiers. Usage Example: <a href="#" role="button">Button Link</a> Screen Readers will read this element as “button” instead of “link”
- The tabindex attribute specifies the tab order of an element (when the "tab" button is used for navigating). The tabindex attribute can be used on any HTML element (it will validate on any HTML element. However, it is not necessarily useful).
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A negative value (usually tabindex="-1" ) means that the element is not reachable via sequential keyboard navigation,