Nested Interactive
Critical - WCAG Level A
The issue of nested interactive elements arises when an interactive HTML element, such as a button or link, is placed inside another interactive element. This can create confusion for users, especially those relying on assistive technologies like screen readers, as it can lead to unexpected behavior when navigating or interacting with the page. For instance, pressing a key to activate an inner button might inadvertently trigger the outer link, leading to a poor user experience.
This problem is significant for keyboard users and those using screen readers because it can disrupt the expected navigation flow. Users may find themselves unable to access certain controls or may activate the wrong control by mistake, which can be frustrating and time-consuming.
To fix this issue:
Ensure that interactive elements are not nested within each other. Instead, restructure your HTML so that each interactive element is distinct and separate.
For example, if you have a button inside a link, consider whether the button's functionality can be incorporated into the link itself, or if the button can be moved outside the link.
Best practices:
Use semantic HTML elements appropriately and ensuring that each interactive element serves a clear, distinct purpose.
Avoid using elements like
<div>or<span>with click handlers as substitutes for buttons or links, as these can also lead to accessibility issues.
Common mistakes to avoid:
Assuming that visual design constraints justify nesting interactive elements.
Instead, work with designers to find solutions that maintain both design integrity and accessibility compliance.