New Twiddle

components.animated-component.js

import Ember from 'ember';

export default Ember.Component.extend({
  tagName: 'button',
  classNameBindings: ['animating'],
  animating: false,
  
  click() {
    this.toggleProperty('animating');
  }
});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle'
});

styles.app.css

body {
  margin: 12px 16px;
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 12pt;
}

button {
  transition: all 2s;
}
.animating {
	padding: 100px;
}

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{animated-component}}
<br>
<br>

templates.components.animated-component.hbs

Click Me

twiddle.json

{
  "version": "0.10.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.6.0",
    "ember-data": "2.6.1",
    "ember-template-compiler": "2.6.0"
  },
  "addons": {}
}