Animation
Add smooth animations and transitions to HeroUI v3 components
Overview
HeroUI components are built on React Aria and support multiple animation approaches:
- Built-in animations - Components come with default CSS transitions
- CSS animations - Customize with Tailwind utilities or custom CSS
- JavaScript libraries - Integrate with Framer Motion, React Spring, etc.
Built-in Animations
HeroUI components use data attributes to expose their state for animation:
/* Popover entrance/exit */
.popover[data-entering] {
@apply animate-in zoom-in-90 fade-in-0 duration-200;
}
.popover[data-exiting] {
@apply animate-out zoom-out-95 fade-out duration-150;
}
/* Button press effect */
.button:active,
.button[data-pressed="true"] {
transform: scale(0.97);
}
/* Accordion expansion */
.accordion__panel[aria-hidden="false"] {
@apply h-[var(--panel-height)] opacity-100;
}State Attributes
Components expose these states for styling:
[data-hovered="true"]- Hover state[data-pressed="true"]- Active/pressed state[data-focus-visible="true"]- Keyboard focus[data-disabled="true"]- Disabled state[data-entering]/[data-exiting]- Transition states[aria-expanded="true"]- Expanded state
CSS Animations
Using Tailwind Utilities
// Pulse on hover
<Button className="hover:animate-pulse">
Hover me
</Button>
// Fade in entrance
<Alert className="animate-fade-in">
Welcome message
</Alert>
// Staggered list
<div className="space-y-2">
<Card className="animate-fade-in animate-delay-100">Item 1</Card>
<Card className="animate-fade-in animate-delay-200">Item 2</Card>
</div>Custom Transitions
Override default component animations:
/* Slower accordion */
.accordion__panel {
@apply transition-all duration-500;
}
/* Bouncy button */
.button:active {
animation: bounce 0.3s;
}
@keyframes bounce {
50% { transform: scale(0.95); }
}Framer Motion
HeroUI components work seamlessly with Framer Motion for advanced animations.
Basic Usage
import { motion } from 'framer-motion';
import { Button } from '@heroui/react';
const MotionButton = motion(Button);
<MotionButton
whileHover={{ scale: 1.05 }}
whileTap={{ scale: 0.95 }}
>
Animated Button
</MotionButton>Entrance Animations
<motion.div
initial={{ opacity: 0, y: 20 }}
animate={{ opacity: 1, y: 0 }}
transition={{ duration: 0.5 }}
>
<Alert>
<Alert.Title>Welcome!</Alert.Title>
</Alert>
</motion.div>Layout Animations
import { AnimatePresence, motion } from 'framer-motion';
function Tabs({ items, selected }) {
return (
<div className="flex gap-2">
{items.map((item, i) => (
<Button key={i} onPress={() => setSelected(i)}>
{item}
{selected === i && (
<motion.div
layoutId="active"
className="absolute inset-0 bg-accent"
transition={{ type: "spring", bounce: 0.2 }}
/>
)}
</Button>
))}
</div>
);
}Render Props
Use render props to apply dynamic animations based on component state:
<Button>
{({ isPressed, isHovered }) => (
<motion.span
animate={{
scale: isPressed ? 0.95 : isHovered ? 1.05 : 1
}}
>
Interactive Button
</motion.span>
)}
</Button>Accessibility
Respecting Motion Preferences
Always respect user motion preferences:
@media (prefers-reduced-motion: reduce) {
.button {
transition: none;
}
.animate-* {
animation: none !important;
}
}With Framer Motion:
import { useReducedMotion } from 'framer-motion';
function AnimatedCard() {
const shouldReduceMotion = useReducedMotion();
return (
<motion.div
initial={{ opacity: 0 }}
animate={{ opacity: 1 }}
transition={{ duration: shouldReduceMotion ? 0 : 0.5 }}
>
<Card>Content</Card>
</motion.div>
);
}Performance Tips
Use GPU-Accelerated Properties
Prefer transform and opacity for smooth animations:
/* Good - GPU accelerated */
.slide-in {
transform: translateX(-100%);
transition: transform 0.3s;
}
/* Avoid - Triggers layout */
.slide-in {
left: -100%;
transition: left 0.3s;
}Will-Change Optimization
.button {
will-change: transform;
}
.button:not(:hover) {
will-change: auto;
}