I am trying to draw a red rectangle on my HTML5 canvas. Here is

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Asked: June 1, 20262026-06-01T03:42:44+00:00 2026-06-01T03:42:44+00:00

I am trying to draw a red rectangle on my HTML5 canvas. Here is

0

I am trying to draw a red rectangle on my HTML5 canvas. Here is my HTML.

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset=utf-8>
    <title>My Canvas Experiment</title>
    <link rel="stylesheet" type="text/css" href="main.css" />
    <script src="plotting.js"></script>
    <!--[if IE]>
      <script src="http://html5shiv.googlecode.com/svn/trunk/html5.js">
      </script>
    <![endif]-->
  </head>
  <body>
    <canvas id="plot"></canvas>
  </body>
</html>

Here is plotting.js:

document.onload = function() {
    var c = document.getElementById("plot");
    var ctx = c.getContext("2d");
    ctx.fillStyle("#f00");
    ctx.fillRect(0, 0, 175, 40);
}

Here is main.css:

body { margin:100px; }

article, aside, figure, footer, header, hgroup, menu, nav, section { 
    display:block;
}
      
#plot {
    width: 500px;
    height: 400px;
}

Why is the page blank? Chrome Web Developer Console issues no errors.