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https://github.com/ConnorAtherton/loaders.css

Delightful, performance-focused pure css loading animations.
https://github.com/ConnorAtherton/loaders.css

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Delightful, performance-focused pure css loading animations.

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README 

        
Loaders.css





  

  




Delightful and performance-focused pure css loading animations.



### What is this?



[See the demo](http://connoratherton.com/loaders)



A collection of loading animations written entirely in css.

Each animation is limited to a small subset of css properties in order

to avoid expensive painting and layout calculations.



I've posted links below to some fantastic articles that go into this

in a lot more detail.



### Install



```

bower install loaders.css

```



```

npm i --save loaders.css

```



### Usage



##### Standard

- Include `loaders.min.css`

- Create an element and add the animation class (e.g. `
`)

- Insert the appropriate number of `
`s into that element



##### jQuery (optional)

- Include `loaders.min.css`, jQuery, and `loaders.css.js`

- Create an element and add the animation class (e.g. `
`)

- `loaders.js` is a simple helper to inject the correct number of div elements for each animation

- To initialise loaders that are added after page load select the div and call `loaders` on them (e.g. `$('.loader-inner').loaders()`)

- Enjoy



### Customising



##### Changing the background color



Add styles to the correct child `div` elements



``` css

.ball-grid-pulse > div {

  background-color: orange;

}

```



##### Changing the loader size



Use a [2D Scale](https://developer.mozilla.org/en-US/docs/Web/CSS/transform-function/scale) `transform`



```css

.loader-small .loader-inner {

  transform: scale(0.5, 0.5);

}

```



### Browser support



Check the [can I use](http://caniuse.com/#search=css-animation) [tables](http://caniuse.com/#search=css-transform).

All recent versions of the major browsers are supported and it has support back to IE9.



Note: The loaders aren't run through autoprefixer, see this [issue](https://github.com/ConnorAtherton/loaders.css/issues/18).



IE 11  | Firefox 36 | Chrome 41 | Safari 8

------ | ---------- | --------- | --------

✔ | ✔ | ✔ | ✔



### Contributing



Pull requests are welcome! Create another file in `src/animations`

and load it in `src/loader.scss`.



In a separate tab run `gulp --require coffee-script/register`. Open `demo/demo.html`

in a browser to see your animation running.



### Further research



- http://www.paulirish.com/2012/why-moving-elements-with-translate-is-better-than-posabs-topleft/

- http://aerotwist.com/blog/pixels-are-expensive/

- http://www.html5rocks.com/en/tutorials/speed/high-performance-animations/

- http://frontendbabel.info/articles/webpage-rendering-101/



### Inspired by loaders.css



A few other folks have taken loaders and ported them elsewhere.



- **React** - [Jon Jaques](https://github.com/jonjaques) built a React demo you can check out [here](https://github.com/jonjaques/react-loaders)

- **Vue** - [Kirill Khoroshilov](https://github.com/Hokid) loaders wrapped into components [vue-loaders](https://github.com/Hokid/vue-loaders)

- **Angular** - [the-corman](https://github.com/the-cormoran/angular-loaders) created some directives for angular, as did [Masadow](https://github.com/Masadow) in [this pr](https://github.com/ConnorAtherton/loaders.css/pull/50)

- **Ember** - [Stanislav Romanov](https://github.com/kaermorchen) created an Ember addon [ember-cli-loaders](https://github.com/kaermorchen/ember-cli-loaders) for using Loaders.css in Ember applications

- **iOS** - [ninjaprox](https://github.com/ninjaprox/NVActivityIndicatorView) and [ontovnik](https://github.com/gontovnik/DGActivityIndicatorView)

- **Android** - [Jack Wang](https://github.com/81813780/AVLoadingIndicatorView) created a library and [technofreaky](https://github.com/technofreaky/Loaders.CSS-Android-App) created an app



### Licence



The MIT License (MIT)



Copyright (c) 2016 Connor Atherton



Permission is hereby granted, free of charge, to any person obtaining a copy

of this software and associated documentation files (the "Software"), to deal

in the Software without restriction, including without limitation the rights

to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

copies of the Software, and to permit persons to whom the Software is

furnished to do so, subject to the following conditions:



The above copyright notice and this permission notice shall be included in all

copies or substantial portions of the Software.



THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE

SOFTWARE.