html, body, #container {

    width: 100%;

    height: 100%;

    margin: 0;

    padding: 0;

}

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

​

var rectangle = new acgraph.math.Rect(10, 20, 55, 55);

​

// Creates rounded inner rectangle.

stage.roundedInnerRect(rectangle, 25, 10);