<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, 10, 100, 200);
// Sets linear gradient fill.
rectangle.fill(['#4CAF50', '#F5F5F5'], 45, true, 0.5);