<div id="container"></div>
html, body, #container {
width: 100%;
height: 100%;
margin: 0;
padding: 0;
}
var stage = acgraph.create('container');
var rect1 = stage.rect(10, 10, 100, 40);
rect1.fill('#F44336');
var rect2 = stage.rect(20, 20, 100, 40);
rect2.fill('#2196F3');
// Blue rectangle is made invisible.
rect2.visible(false);