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Selected Reading
Perform Animation on CSS max-width
The CSS max-width property can be animated to create dynamic width transitions. This is particularly useful for creating responsive layouts, expandable containers, or smooth resizing effects.
Syntax
selector {
max-width: value;
animation: animation-name duration;
}
@keyframes animation-name {
percentage {
max-width: value;
}
}
Example: Basic max-width Animation
The following example demonstrates a smooth transition of the max-width property from its initial state to 250px −
<!DOCTYPE html>
<html>
<head>
<style>
.animated-box {
max-width: 500px;
overflow: hidden;
background-color: #3498db;
color: white;
border: 2px solid #2c3e50;
padding: 20px;
margin: 20px 0;
animation: shrinkWidth 3s ease-in-out;
}
@keyframes shrinkWidth {
0% {
max-width: 500px;
}
30% {
max-width: 250px;
}
100% {
max-width: 500px;
}
}
</style>
</head>
<body>
<h2>Max-Width Animation Example</h2>
<div class="animated-box">
<p>This container demonstrates max-width animation. Watch as the width smoothly transitions from 500px to 250px and back. This is demo text that will wrap differently as the container width changes during the animation.</p>
</div>
</body>
</html>
A blue container with white text starts at full width (500px), smoothly shrinks to 250px at 30% of the animation, then expands back to full width. The text content reflows as the container width changes.
Example: Hover-Triggered Animation
This example shows how to trigger max-width animation on hover −
<!DOCTYPE html>
<html>
<head>
<style>
.hover-box {
max-width: 200px;
height: 100px;
background-color: #e74c3c;
color: white;
display: flex;
align-items: center;
justify-content: center;
margin: 20px 0;
transition: max-width 0.5s ease;
cursor: pointer;
}
.hover-box:hover {
max-width: 400px;
}
</style>
</head>
<body>
<h2>Hover to Expand</h2>
<div class="hover-box">
Hover me!
</div>
</body>
</html>
A red box initially 200px wide that smoothly expands to 400px width when hovered over, then contracts back when the mouse leaves.
Conclusion
Animating the max-width property creates smooth, visually appealing transitions for container resizing. Use keyframes for complex animations or transitions for simple hover effects.
Updated on: 2026-03-15T13:33:32+05:30
1K+ Views
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