<link href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/js/bootstrap.min.js"></script>
<script src="//code.jquery.com/jquery-1.11.1.min.js"></script>
<!------ Include the above in your HEAD tag ---------->
<div class="container">
<div class="row">
<h2>Learning the Canvas</h2>
<canvas id="myCanvas" width="600" height="600"></canvas>
<script>
var canvas = document.getElementById('myCanvas');
var context = canvas.getContext('2d');
//circle
var x = 330;
var y = 250;
var radius = 220;
var startAngle = 1 * Math.PI;
var endAngle = 4 * Math.PI;
var counterClockwise = false;
context.beginPath();
context.arc(x, y, radius, startAngle, endAngle, counterClockwise);
context.lineWidth = 15;
context.fillStyle = '#8ED6FF';
context.fill();
// line color
context.strokeStyle = 'black';
context.stroke();
// do cool things with the context
context.font = '40pt Apple Chancery';
context.fillStyle = 'red';
context.fillText('Goodbye World!', 150, 250);
//linr
context.lineWidth = 1;
context.beginPath();
context.moveTo(150, 250);
context.lineTo(500, 250);
context.stroke();
</script>
</div>
</div>
