Lan lanzhiheng

## gist:3c158762b6cae124625ad69b6608464d
<html>
  <head>
    <script src='http://code.jquery.com/jquery-1.5.1.min.js'></script>
  </head>

  <body>
    <h2>Naive canvas</h2>
    <canvas id="naive" width="400" height="50"></canvas>

    <h2>High-def Canvas</h2>
	<html>
	<head>
	<script src='http://code.jquery.com/jquery-1.5.1.min.js'></script>
	</head>

	<body>
	<h2>Naive canvas</h2>
	<canvas id="naive" width="400" height="50"></canvas>

	<h2>High-def Canvas</h2>