12. <!DOCTYPE html><html><body>
<canvas id="myCanvas" width="200" height="100"
style="border:1px solid #c3c3c3;">
Your browser does not support the canvas element.
</canvas>
<script type="text/javascript">
var c=document.getElementById("myCanvas");
var cxt=c.getContext("2d");
cxt.fillStyle="#FF0000";
cxt.fillRect(0,0,150,75);
</script></body></html> 12
18. <video>
<!DOCTYPE html><html><body>
<video controls="controls" autoplay="autoplay">
<source src="movie.mp4" type="video/mp4" />
<source src="movie.ogg" type="video/ogg" />
<source src="movie.webm" type="video/webm" />
Your browser does not support the video tag.
</video>
</body></html>
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22. <script type="text/javascript">
if (localStorage.n)
{
localStorage.n=Number(localStorage.n) +1;
}
else
{
localStorage.n=1;
}
document.write("Visits: " + localStorage.n + " time(s).");
</script>
<p>Refresh the page to see the counter increase.</p>
<p>Close the browser window, and try again, and the
counter will continue.</p>
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