Fill canvas 100%

Whole canvas area is filled.

by sum1

HTML

<canvas id="can"></canvas>

CSS

#can{
 
}

JavaScript

$canvas = $("#can")[0];
var context = $canvas.getContext('2d');
context.canvas.width=40;
context.canvas.height=40
context.beginPath();
context.rect(0, 0, 30, 30);
context.fillStyle = "blue";
context.fill();