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    <p>Centring using <code>margin: 0 auto;</code> with <code>display: block;</code> works in almost all browser - the ones that support <code>&lt;canvas&gt;</code> for sure.</p> <p>Live example: <a href="http://jsbin.com/ovoziv/2" rel="noreferrer">http://jsbin.com/ovoziv/2</a></p> <p>HTML</p> <pre><code>&lt;!DOCTYPE html&gt; &lt;html&gt; &lt;head&gt; &lt;meta charset=utf-8 /&gt; &lt;title&gt;Centring Canvas&lt;/title&gt; &lt;/head&gt; &lt;body&gt; &lt;canvas&gt;&lt;/canvas&gt; &lt;/body&gt; &lt;/html&gt; </code></pre> <p>CSS</p> <pre><code>canvas { display: block; background: #FFFFB7; width: 550px; height: 400px; margin: 0 auto; } </code></pre> <p><strong>EDIT: Updated answer to center vertically too. This CSS will do the trick:</strong></p> <pre><code>canvas { background-color: #FFFFB7; width: 550px; height: 400px; position: absolute; top: 50%; left: 50%; margin-left: -275px; margin-top: -200px; } </code></pre> <p>Now the explanation. We first place the canvas with 50% offset from the top and left-side using <code>position: absolute</code> by setting <code>top</code> and <code>left</code> to <code>50%</code>. Then, because your canvas has a static size, we add a negative margin (which you should never do when the element is not absolute positioned) for half of the width and size (550x400/2 = 275x200): <code>margin-left: -275px; margin-top: -200px;</code>.</p> <p>The canvas will now be displayed at the center of the screen. If you do this inside another element and want to center in that one, try adding <code>position: relative;</code> to that element, so it will use it's bounds instead of the body's.</p> <p>Live example here: <a href="http://jsbin.com/ovoziv/6" rel="noreferrer">http://jsbin.com/ovoziv/6</a></p>
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    1. COBut it's not vertically centered, only horizontal.
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    2. CO@user1431627 I updated my answer. It's basically your code, but seems to work anyway..
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    3. COI figured out the problem. The IE settings were set to zoom the whole page in. Embarrasing :P
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