How to create a bouncing animation with CSS?
Define @keyframes bounce with 0%, 100% at translateY(0) and 50% at translateY(-20px) to create a basic bounce. 2. Apply the animation to an element using animation: bounce 0.6s ease-in-out infinite for smooth, continuous motion. 3. For realism, use @keyframes realistic-bounce with scale(1.1, 0.9) at 50% and ease-in-out timing to simulate squish on impact. Adjust height, duration, and effects like shadow or opacity for enhanced results. The animation is achieved using transform for performance and natural movement, ending with a complete sentence.
Creating a bouncing animation with CSS is straightforward using keyframes and the animation property. Here's how you can make an element bounce up and down:
1. Define the Keyframes for Bouncing
Use @keyframes to specify the animation behavior. A simple bounce can go from the top position, down (simulating a drop), and back up.
@keyframes bounce {
0%, 100% {
transform: translateY(0);
}
50% {
transform: translateY(-20px);
}
}This keyframe animation moves the element up by 20px at the midpoint and returns to the original position, creating a bounce effect.
2. Apply the Animation to an Element
Select the element you want to animate and apply the animation with desired timing and repetition.
.bounce-element {
width: 50px;
height: 50px;
background-color: #3498db;
margin: 100px auto;
animation: bounce 0.6s ease-in-out infinite;
}bounce: name of the keyframe animation0.6s: duration of one cycleease-in-out: makes the motion feel more natural (slows at start and end)infinite: repeats the animation continuously
3. Make It Feel More Realistic (Optional)
For a more natural bounce, you can add scaling to simulate squish on impact.
@keyframes realistic-bounce {
0%, 100% {
transform: translateY(0) scale(1);
animation-timing-function: ease-out;
}
50% {
transform: translateY(-20px) scale(1.1, 0.9);
animation-timing-function: ease-in;
}
}This version slightly stretches the element vertically at the top and squashes it horizontally at the peak, mimicking physical compression.
Apply it the same way:
.bounce-element {
animation: realistic-bounce 0.6s infinite;
}Tips for Better Results
- Adjust
translateYvalue to control bounce height - Tweak animation duration for faster or slower bounces
- Use
animation-delayif sequencing multiple bounces - Combine with
opacityor shadow changes for added depth
Basically, it's about moving the element vertically with smooth timing. The key is using transform for performance and ease-in-out for natural motion. With small tweaks, you can simulate anything from a light hop to a heavy ball drop.
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