var Engine = Matter.Engine,

    Render = Matter.Render,

    Runner = Matter.Runner,

    Bodies = Matter.Bodies,

    Composite = Matter.Composite;

​

// create an engine

var engine = Engine.create();

​

// create a renderer

var render = Render.create({

    element: document.body,

    engine: engine

});

​

// create two boxes and a ground

var boxA = Bodies.rectangle(400, 200, 80, 80);

var boxB = Bodies.rectangle(450, 50, 80, 80);

var ground = Bodies.rectangle(400, 610, 810, 60, { isStatic: true });

​

// add all of the bodies to the world

Composite.add(engine.world, [boxA, boxB, ground]);

​

// run the renderer

Render.run(render);

​

// create runner

var runner = Runner.create();

​

// run the engine

Runner.run(runner, engine);

​