html, body, #container {

    width: 100%;

    height: 100%;

    margin: 0;

    padding: 0;

}

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

​

// Creates clip instance.

var clipArea = acgraph.clip(10, 10, 90, 90);

​

var blueCircle = acgraph.circle(50, 50, 50);

blueCircle.fill("#2196F3");

blueCircle.parent(stage);

blueCircle.clip(clipArea);