<div id="container"></div>
html, body, #container {
width: 100%;
height: 100%;
margin: 0;
padding: 0;
}
var stage = acgraph.create('container');
var rectangle = stage.rect(10, 30, 120, 100);
// Gets the stroke thickness.
var size = rectangle.strokeThickness();
stage.text(10, 5, 'The stroke thickness is ' + size);