Loaders.css

Delightful and performance-focused pure css loading animations.

What is this?

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. <div class="loader-inner ball-pulse"></div>)
Insert the appropriate number of <div>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. <div class="loader-inner ball-pulse"></div>)
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

ball-grid-pulse > div {
  background-color: orange;
}

Changing the loader size

Use a 2D Scale transform

.loader-small .loader-inner {
  transform: scale(0.5, 0.5);
}

Browser support

Check the can I use tables.
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.

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

Inspired by loaders.css

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

React – Jon Jaques built a React demo you can check out here
Vue – Kirill Khoroshilov loaders wrapped into components vue-loaders
Angular – the-corman created some directives for angular, as did Masadow in this pr
Ember – Stanislav Romanov created an Ember addon ember-cli-loaders for using Loaders.css in Ember applications
iOS – ninjaprox and ontovnik
Android – Jack Wang created a library and technofreaky created an app

Licence

The MIT License (MIT)

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.

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