html, body, #container {

    width: 100%;

    height: 100%;

    margin: 0;

    padding: 0;

}

var stage = acgraph.create('container');

​

var rectangle = stage.rect(40, 10, 100, 100);

rectangle.fill('#90CAF9');

​

// Gets stage of the rectangle.

var rectStage = rectangle.getStage();

​

rectStage.circle(90, 55, 20);