raphaelpor/index.html

## index.html
<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title>Olá Mundo!</title>
    <link href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css" rel="stylesheet">
    <style>
    body {
      background-color: #222;
      color:#fff;
    }
    .container-full {
      padding-top: 10%;
      background-color: transparent;
    }
    </style>
  </head>

  <body>

    <main class="container-full jumbotron">
      <div>
        <div class="col-lg-12 text-center">
          <h1 class="">Olá mundo!</h1>
          <p><img src="http://www.concretesolutions.com.br/img/logo.png"></p>
          <small>
            io.js <script>document.write(process.version)</script><br>
            Electron v<script>document.write(process.versions['electron'])</script><br>
            <script>document.write(process.platform)</script>
          </small>
        </div>
      </div>
    </main>

  </body>
</html>

## main.js
var app = require('app');  // Module to control application life.
var BrowserWindow = require('browser-window');  // Module to create native browser window.

// Report crashes to our server.
require('crash-reporter').start();

// Keep a global reference of the window object, if you don't, the window will
// be closed automatically when the JavaScript object is GCed.
var mainWindow = null;

// Quit when all windows are closed.
app.on('window-all-closed', function() {
  // On OS X it is common for applications and their menu bar
  // to stay active until the user quits explicitly with Cmd + Q
  if (process.platform != 'darwin') {
    app.quit();
  }
});

// This method will be called when Electron has finished
// initialization and is ready to create browser windows.
app.on('ready', function() {
  // Create the browser window.
  mainWindow = new BrowserWindow({width: 800, height: 600});

  // and load the index.html of the app.
  mainWindow.loadUrl('file://' + __dirname + '/index.html');

  // Open the devtools.
  // mainWindow.openDevTools();

  // Emitted when the window is closed.
  mainWindow.on('closed', function() {
    // Dereference the window object, usually you would store windows
    // in an array if your app supports multi windows, this is the time
    // when you should delete the corresponding element.
    mainWindow = null;
  });
});

## package.json
{
  "name"    : "electron-testapp",
  "version" : "0.1.0",
  "main"    : "main.js"
}
	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8">
	<title>Olá Mundo!</title>
	<link href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css" rel="stylesheet">
	<style>
	body {
	background-color: #222;
	color:#fff;
	}
	.container-full {
	padding-top: 10%;
	background-color: transparent;
	}
	</style>
	</head>

	<body>

	<main class="container-full jumbotron">
	<div>
	<div class="col-lg-12 text-center">
	<h1 class="">Olá mundo!</h1>
	<p><img src="http://www.concretesolutions.com.br/img/logo.png"></p>
	<small>
	io.js <script>document.write(process.version)</script><br>
	Electron v<script>document.write(process.versions['electron'])</script><br>
	<script>document.write(process.platform)</script>
	</small>
	</div>
	</div>
	</main>

	</body>
	</html>
	var app = require('app'); // Module to control application life.
	var BrowserWindow = require('browser-window'); // Module to create native browser window.

	// Report crashes to our server.
	require('crash-reporter').start();

	// Keep a global reference of the window object, if you don't, the window will
	// be closed automatically when the JavaScript object is GCed.
	var mainWindow = null;

	// Quit when all windows are closed.
	app.on('window-all-closed', function() {
	// On OS X it is common for applications and their menu bar
	// to stay active until the user quits explicitly with Cmd + Q
	if (process.platform != 'darwin') {
	app.quit();
	}
	});

	// This method will be called when Electron has finished
	// initialization and is ready to create browser windows.
	app.on('ready', function() {
	// Create the browser window.
	mainWindow = new BrowserWindow({width: 800, height: 600});

	// and load the index.html of the app.
	mainWindow.loadUrl('file://' + __dirname + '/index.html');

	// Open the devtools.
	// mainWindow.openDevTools();

	// Emitted when the window is closed.
	mainWindow.on('closed', function() {
	// Dereference the window object, usually you would store windows
	// in an array if your app supports multi windows, this is the time
	// when you should delete the corresponding element.
	mainWindow = null;
	});
	});
	{
	"name" : "electron-testapp",
	"version" : "0.1.0",
	"main" : "main.js"
	}