Combining multiple animations on a single element allows you to create sophisticated, engaging effects that go far beyond simple transitions. By chaining animations—using several @keyframes rules and carefully coordinating their timing, delays, and properties—you can guide the user's attention and create a more dynamic interface.

This approach is especially useful for interactive UI elements like banners, modals, or notifications, where you might want an element to appear, animate in a certain way, and then exit or settle into place with a flourish.

To achieve a complex effect like the animated notification banner, you need to sequence multiple animations so that each one starts at the right time and does not interfere with the others. In the example, three separate animations are applied to the notification-banner element using the animation shorthand property.

• The first animation, slideIn, moves the banner into view from above. This animation starts immediately and lasts for 0.4s;
• The second animation, fadeIn, controls the opacity. It starts after a 0.4s delay (so it begins as soon as slideIn finishes) and also runs for 0.4s;
• The third animation, bounce, adds a playful bounce effect to the banner after it has fully appeared. This animation starts after a 0.8s delay, giving enough time for both the slide and fade to complete, and lasts for 0.5s.

Each animation is defined with its own @keyframes rule to control a specific property: slideIn for vertical movement, fadeIn for opacity, and bounce for the final bounce.