Which attribute is recommended for interactive elements to enhance their accessibility?

The recommended attribute for enhancing the accessibility of interactive elements is tabindex. This attribute allows developers to manage the focus order of elements on a webpage, making it easier for users, especially those who rely on keyboard navigation or assistive technologies, to interact with them. By defining a tabindex, you can control which elements receive focus when users navigate through the page using the keyboard.

For interactive elements, using tabindex effectively ensures that all users can access important controls and features, even if they cannot use a mouse. This is particularly useful for users with disabilities, as it provides a logical and orderly way to navigate through a page.

Other attributes such as id and class are primarily used for identification and styling purposes rather than for enhancing functionality or accessibility. The style attribute is solely for applying CSS styles, which doesn't directly enhance the interaction or navigability of elements. Therefore, while these attributes serve important roles, they do not provide the same direct benefits to accessibility as tabindex does.