Card Row
The ThemeKit Scroll Cards widget can have two, three or four items with a lot of possible variations.
Each item has its own controls for rotate X and Y both positive and negative an the initial scale and opacity can be adjusted using sliders.
The containers have controls for border width color and radius and for adding a bottom box shadow.
Perspective
While a bottom box shadow can add a sense of depth to a page design it can be enhanced using the CSS property for perspective.
Althoug the value for perspective is more usually expressed in pixels using viewport units is more appropraite for responsive designs.
EverWeb widgets use viewport width (vw) units for perspective. The lower the value - the more the effect until zero is reached and the effect is remove conpletely.