Modal Dialog Test

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;
}

// Have to copy this from addon due to no support for scss
.ember-modal-overlay {
  height: 100%;
  left: 0;
  position: fixed;
  right: 0;
  top: 0;
  z-index: 50;
}
.ember-modal-dialog {
  z-index: 50;
  position: fixed;

  &.ember-modal-dialog-in-place {
    position: relative;
  }
}

.ember-modal-dialog {
  border-radius: 8px;
  background-color: #fff;
  box-shadow: 0 0 10px #222;
  padding: 10px;
}
.ember-modal-overlay.translucent {
  background-color: rgba(#808080, .77);
}

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{#modal-dialog}}Oh hai there!{{/modal-dialog}}
<br>
<br>

twiddle.json

{
  "version": "0.7.2",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.9.0",
    "ember-data": "2.8.0",
    "ember-template-compiler": "2.9.0"
  },
  "addons": {
    "ember-modal-dialog": "0.9.0"
  }
}

it's looks like it took you some time , well done m8 !