animate.css/docsSource/sections/02-utilities.md
2022-03-01 14:28:05 +00:00

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## Utility Classes
Animate.css comes packed with a few utility classes to simplify its use.
### Delay classes
You can add delays directly on the element's class attribute, just like this:
```html
<div class="animate__animated animate__bounce animate__delay-2s">Example</div>
```
Animate.css provides the following delays:
| Class name | Default delay time |
| ------------------- | ------------------ |
| `animate__delay-2s` | `2s` |
| `animate__delay-3s` | `3s` |
| `animate__delay-4s` | `4s` |
| `animate__delay-5s` | `5s` |
The provided delays are from 1 to 5 seconds. You can customize them setting the `--animate-delay` property to a longer or a shorter duration:
```css
/* All delay classes will take 2x longer to start */
:root {
--animate-delay: 2s;
}
/* All delay classes will take half the time to start */
:root {
--animate-delay: 0.5s;
}
```
### Slow, slower, fast, and Faster classes
You can control the speed of the animation by adding these classes, as below:
```html
<div class="animate__animated animate__bounce animate__faster">Example</div>
```
| Class name | Default speed time |
| ----------------- | ------------------ |
| `animate__slow` | `2s` |
| `animate__slower` | `3s` |
| `animate__fast` | `800ms` |
| `animate__faster` | `500ms` |
The `animate__animated` class has a default speed of `1s`. You can also customize the animations duration through the `--animate-duration` property, globally or locally. This will affect both the animations and the utility classes. Example:
```css
/* All animations will take twice as long to finish */
:root {
--animate-duration: 2s;
}
/* Only this element will take half the time to finish */
.my-element {
--animate-duration: 0.5s;
}
```
Notice that some animations have a duration of less than 1 second. As we used the CSS `calc()` function, setting the duration through the `--animation-duration` property will respect these ratios. So, when you change the global duration, all the animations will respond to that change!
### Repeating classes
You can control the iteration count of the animation by adding these classes, like below:
```html
<div class="animate__animated animate__bounce animate__repeat-2">Example</div>
```
| Class Name | Default iteration count |
| ------------------- | ----------------------- |
| `animate__repeat-1` | `1` |
| `animate__repeat-2` | `2` |
| `animate__repeat-3` | `3` |
| `animate__infinite` | `infinite` |
As with the delay and speed classes, the `animate__repeat` class is based on the `--animate-repeat` property and has a default iteration count of `1`. You can customize them by setting the `--animate-repeat` property to a longer or a shorter value:
```css
/* The element will repeat the animation 2x
It's better to set this property locally and not globally or
you might end up with a messy situation */
.my-element {
--animate-repeat: 2;
}
```
Notice that `animate__infinite` doesn't use any custom property, and changes to `--animate-repeat` will have no effect. Don't forget to read the [best practices](#best-practices) section to make the best use of repeating animations.