animation-timing-function.md

Animation Direction

Utilities for controlling the timing function of CSS animations.

Class	Properties
ease-linear	animation-timing-function: normal;
ease-in	animation-timing-function: cubic-bezier(0.4, 0, 1, 1);
ease-out	animation-timing-function: cubic-bezier(0, 0, 0.2, 1);
ease-in-out	animation-timing-function: cubic-bezier(0.4, 0, 0.2, 1);

Note: This is reusing the same classes as transition-timing-function, this may change in the future if it turns out to cause friction.

Basic Usage

Changing animation timing function

Use the ease-{keyword} utilities to control an element’s animation-timing-function.

<button class="animate-bounce ease-linear ...">Button A</button>
<button class="animate-bounce ease-in ...">Button B</button>
<button class="animate-bounce ease-out ...">Button C</button>
<button class="animate-bounce ease-in-out ...">Button C</button>

Applying Conditionally

Hover, focus, and other states

Tailwind lets you conditionally apply utility classes in different states using variant modifiers. For example, use hover:ease-in-out to only apply the ease-in-out utility on hover.

<div class="animate-bounce ease-linear hover:ease-in-out">
	<!-- ... -->
</div>

For a complete list of all available state modifiers, check out the Hover, Focus, & Other States documentation.

Breakpoints and media queries

You can also use variant modifiers to target media queries like responsive breakpoints, dark mode, prefers-reduced-motion, and more. For example, use md:ease-in-out to apply the ease-in-out utility at only medium screen sizes and above.

<div class="animate-bounce ease-linear md:ease-in-out">
	<!-- ... -->
</div>

To learn more, check out the documentation on Responsive Design, Dark Mode and other media query modifiers.

Using custom values

Customizing your theme

By default, Tailwind provides four general purpose animation-timing-function utilities. You can customize these values by editing theme.animationTimingFunction or theme.extend.animationTimingFunction in your tailwind.config.js file.

// @filename tailwind.config.js
module.exports = {
	theme: {
		extend: {
			animationTimingFunction: {
				"in-expo": "cubic-bezier(0.95, 0.05, 0.795, 0.035)",
				"out-expo": "cubic-bezier(0.19, 1, 0.22, 1)",
			},
		},
	},
}

Note: By default animationTimingFunction extends from transitionTimingFunction, by modifying transitionTimingFunction you also modify animationTimingFunction.

Learn more about customizing the default theme in the theme customization documentation.

Arbitrary values

If you need to use a one-off animation-timing-function value that doesn’t make sense to include in your theme, use square brackets to generate a property on the fly using any arbitrary value.

<div class="ease-[cubic-bezier(0.95,0.05,0.795,0.035)]">
	<!-- ... -->
</div>

Learn more about arbitrary value support in the arbitrary values documentation.