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css_animations.html
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<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>CSS Animations</title>
<meta name="apple-mobile-web-app-capable" content="yes" />
<meta name="apple-mobile-web-app-status-bar-style" content="black-translucent" />
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
<link rel="stylesheet" href="lib/reveal.js/css/reveal.min.css">
<link rel="stylesheet" href="lib/reveal.js/css/theme/night.css">
<link rel="stylesheet" href="lib/template.css">
<!-- For syntax highlighting -->
<link rel="stylesheet" href="lib/reveal.js/lib/css/zenburn.css">
<!-- Talk-specific styles -->
<link rel="stylesheet" href="css_animations/demos.css">
<!-- If the query includes 'print-pdf', include the PDF print sheet -->
<script>
if( window.location.search.match( /print-pdf/gi ) ) {
var link = document.createElement( 'link' );
link.rel = 'stylesheet';
link.type = 'text/css';
link.href = 'css/print/pdf.css';
document.getElementsByTagName( 'head' )[0].appendChild( link );
}
</script>
<!--[if lt IE 9]>
<script src="lib/reveal.js/lib/js/html5shiv.js"></script>
<![endif]-->
</head>
<body>
<div class="reveal">
<div class="slides" id="content">
<section data-markdown
data-separator="==="
data-vertical="---"><script type="text/template">
# Oooh pretty ...
<br>
**CSS transitions and animations**
===
**New CSS properties introduced in CSS3**
<br>
> CSS Transitions allows property changes in CSS values to occur smoothly over a specified duration.
<br>
> CSS Animations [are] a way [...] to animate the values of CSS properties over time, using keyframes.
===
## How it works
---
### Transitions
```css
.foo{
background-color: red;
transition: background-color 400ms linear;
}
.foo:hover{
background-color: yellow;
}
```
<div class="demo" id="demo1">
<div class="box"></div>
<div class="box transition"></div>
</div>
---
`transition <property> <duration> <timing-function> <delay>`
<br>
* **property** : `<css property>`, `all`
* **duration** : `2s`, `300ms`
* **timing-function** : `linear`, `ease`, `cubic-bezier()`
* **delay**: `300ms`, `none`
---
### Animations
```css
.wheel{
animation: colorwheel 5s infinite;
}
@keyframes colorwheel{
0% { background: #FF4136; }
15% { background: #FF851B; }
30% { background: #FFDC00; }
45% { background: #2ECC40; }
60% { background: #0074D9; }
75% { background: #B10DC9; }
}
```
<div class="demo" id="demo2">
<div class="box" onclick='$(this).addClass("wheel");'></div>
<div class="box" onclick='$(this).addClass("wheel");'></div>
<div class="box" onclick='$(this).addClass("wheel");'></div>
</div>
---
`animation <name> <duration> <timing-function> <infinite?> <reverse?>`
* **keyframes** : `from` and `to`, or percent points
===
### Transitions or Animations ?
* Infinite? **animation**
* Should handle dynamic state? **transition**
* Need fine-grain control? **neither**
<div class="fragment"><small>Well, both, but with JS controls ^^</small></div>
---
### Answer the question please
Just use **transitions** then. Less hassle overall.
===
## Why use it?
* Gracefully degrates on older browsers
* Overall good support (IE 10+)
* Performance friendly (mobile-notably)
* “Logically“ the best place to put it
===
## Good stuff to know
---
### Browser rendering
* layout > paint > composite
* Want smooth animations?
* **opacity**
* **transform**
* colors
* shadows
* backgrounds
---
### Easings
* `<timing-function>`
* native : **linear** and **ease**
* [easings.net](http://easings.net/fr)
<div class="demo" id="demo3">
<div class="container"><div class="box linear"></div></div>
<div class="container"><div class="box ease"></div></div>
<div class="container"><div class="box ease-out-back"></div></div>
<div class="container"><div class="box ease-in-out-expo"></div></div>
</div>
---
### Vendor prefixes
* transitions
* animations
* keyframes
* properties (transform...)
<br/>
<div class="fragment">
<strong>Just use SASS</strong>
<pre><code class="sass">
@mixin transition($args...) {
-webkit-transition: $args;
-moz-transition: $args;
-ms-transition: $args;
-o-transition: $args;
transition: $args;
}
</code></pre>
</div>
===
## Examples
---
### Switches
<div class="demo" id="demo4">
<div class="content">
<input type="checkbox" class="toggle" id="check1"></input>
<label for="check1"></label>
</div>
<div class="content">
<input type="checkbox" class="toggle transition" id="check2"></input>
<label for="check2"></label>
</div>
</div>
---
### Spinners
```css
.spinner{ animation: spin 600ms infinite linear; }
.spinner:after{ animation: spin 300ms infinite linear reverse; }
@keyframes spin {
from:{ transform: rotate(0deg); }
to:{ transform: rotate(360deg); }
}
```
<div class="demo" id="demo5">
<div class="spinner"></div>
</div>
---
### Onload effects
```css
.loading h2.title{ opacity: 0; transform: translateY(-20px); }
h2.title{ transform: all 300ms ease 2s; }
```
```js
$(function(){ $('body').removeClass('loading') })
```
<div class="demo inactive" id="demo6">
<div class="content">
<h2>A title</h2>
<p>A subtitle</p>
</div>
</div>
---
### 3D stuff
```css
.title:hover img{
transform: rotateY(180deg);
}
```
<div class="demo" id="demo7">
<div class="title">
<img src="css_animations/jt-logo.png">
<span>JOBTEASER</span>
</div>
</div>
---
### Chaining / controlling transitions
```javascript
$el.addClass('fade-out');
setTimeout(function(){
$el.removeClass('fade-out').addClass('fade-in-prepare');
$el.find('.content').html('ON');
$el.redraw();
$el.addClass('fade-in');
}, 500);
```
```css
.fade-out{ transform: scale(0); opacity: 1; transition: all 500ms ease-in-back; }
.fade-in-prepare{ transform: scale(3); opacity: 0; }
.fade-in{ transform: scale(1); opacity: 1; transition: all 500ms ease-out-back; }
```
<div class="demo" id="demo8">
<div class="box">
<span class="content">OFF</span>
</div>
</div>
===
## Resources
* [MDN guide](https://developer.mozilla.org/en-US/docs/Web/Guide/CSS/Using_CSS_transitions)
* [W3 Reference](http://www.w3.org/TR/css3-transitions/)
* [CSS Triggers](http://csstriggers.com/)
* [Easings](http://easings.net/fr)
* [Material design](http://www.google.com/design/spec/animation/authentic-motion.html)
</script></section>
</div>
</div>
<script src="lib/reveal.js/lib/js/head.min.js"></script>
<script src="lib/reveal.js/js/reveal.min.js"></script>
<script src="lib/jquery/dist/jquery.min.js"></script>
<script src="config.js"></script>
<script src="css_animations/demo.js"></script>
</body>
</html>