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Angelos Chalaris
2020-04-30 13:21:04 +03:00
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snippets/bouncing-loader.md
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@ -5,6 +5,15 @@ tags: animation,intermediate
Creates a bouncing loader animation.
- `@keyframes` defines an animation that has two states, where the element changes `opacity` and is translated up on the 2D plane using `transform: translate3d()`. Using a single axis translation on `transform: translate3d()` improves the performance of the animation.
- `.bouncing-loader` is the parent container of the bouncing circles and uses `display: flex` and `justify-content: center` to position them in the center.
- `.bouncing-loader > div`, targets the three child `div`s of the parent to be styled. The `div`s are given a width and height of `1rem`, using `border-radius: 50%` to turn them from squares to circles.
- `margin: 3rem 0.2rem` specifies that each circle has a top/bottom margin of `3rem` and left/right margin of `0.2rem` so that they do not directly touch each other, giving them some breathing room.
- `animation` is a shorthand property for the various animation properties: `animation-name`, `animation-duration`, `animation-iteration-count`, `animation-direction` are used.
- `nth-child(n)` targets the element which is the nth child of its parent.
- `animation-delay` is used on the second and third `div` respectively, so that each element does not start the animation at the same time.
- Note that `1rem` is usually `16px`.
```html
<div class="bouncing-loader">
<div></div>
@ -43,15 +52,3 @@ Creates a bouncing loader animation.
animation-delay: 0.4s;
}
```
#### Explanation
Note: `1rem` is usually `16px`.
- `@keyframes` defines an animation that has two states, where the element changes `opacity` and is translated up on the 2D plane using `transform: translate3d()`. Using a single axis translation on `transform: translate3d()` improves the performance of the animation.
- `.bouncing-loader` is the parent container of the bouncing circles and uses `display: flex` and `justify-content: center` to position them in the center.
- `.bouncing-loader > div`, targets the three child `div`s of the parent to be styled. The `div`s are given a width and height of `1rem`, using `border-radius: 50%` to turn them from squares to circles.
- `margin: 3rem 0.2rem` specifies that each circle has a top/bottom margin of `3rem` and left/right margin of `0.2rem` so that they do not directly touch each other, giving them some breathing room.
- `animation` is a shorthand property for the various animation properties: `animation-name`, `animation-duration`, `animation-iteration-count`, `animation-direction` are used.
- `nth-child(n)` targets the element which is the nth child of its parent.
- `animation-delay` is used on the second and third `div` respectively, so that each element does not start the animation at the same time.