The intent of this condition is to ensure that additional content which may appear on hover of a target may also be hovered itself. Content which appears on hover can be difficult or impossible to perceive if a user is required to keep their mouse pointer over the trigger. When the added content is large, magnified views may mean that the user needs to scroll or pan to completely view it, which is impossible unless the user is able to move their pointer off the trigger without the additional content disappearing.

Another common situation is when large pointers have been selected via platform settings or assistive technology. Here, the pointer can obscure a significant area of the additional content. A technique to view the content fully in both situations is to move the mouse pointer directly from the trigger onto the new content. This capability also offers significant advantages for users who utilize screen reader feedback on mouse interactions. This condition generally implies that the additional content overlaps or is positioned adjacent to the target.