In the context of Material Design, what does elevation refer to?

Elevation in the context of Material Design refers to the layering or depth in an interface. This concept is visually represented through shadows and the positioning of elements within a user interface. Material Design employs elevation to create a sense of hierarchy and organization, allowing users to intuitively understand which elements are interactive and which are static.

By using varying levels of elevation indicated by different shadow depths, designers can guide users' attention and create a more engaging experience. For example, a button may appear to float above the surface due to its higher elevation, drawing the user’s eye and suggesting that it is an actionable element. This layered approach enhances usability by reinforcing the spatial relationships between elements, making the interface easier to navigate.