Explore the new capabilities of CSS transitions for display properties in this 21-minute video tutorial. Learn how to animate elements to and from display: none using keyframes, understand discrete animations, and discover the @starting-style rule for smoother transitions. Dive into browser support, progressive enhancement techniques, and best practices for implementing overlays in popups and dialogs. Gain insights on handling pseudo-elements like ::backdrop and enhance your CSS skills to create more dynamic and visually appealing web designs.