Canvas Base
HTML
<canvas id="canvas" width="300" height="300"></canvas>
CSS
canvas {
border: 1px red solid;
}
JavaScript
var ctx = document.getElementById('canvas').getContext('2d');
for (var x = 0.5; x < 300; x += 10) {ctx.moveTo(x, 0);ctx.lineTo(x, 300);}for (var y = 0.5; y < 300; y += 10) {ctx.moveTo(0, y);ctx.lineTo(300, y);}ctx.strokeStyle = "#ddd";ctx.stroke(); // Grid