How to center vertically and horizontaly my canvas in HTM5

I have my canvas 800x600 and it stays on top left of the screen.
How do I center it


<body onload="init();" style="background-color:#ffffff">
	<canvas id="canvas" width="800" height="600" style="background-color:#FFFFFF"></canvas>
</body>

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Angha110Asked:
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GaryCommented:
<body onload="init();" style="background-color:#ffffff">
	<canvas id="canvas" width="800" height="600" style="background-color:#FFFFFF;position:absolute;top:50%;left:50%;margin-left:-400px;margin-top:-300px"></canvas>
</body>

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http://jsfiddle.net/wDPmt/

Give the element an absolute position and set the top and left margins to 50%.
Then give the element a negative top and left margin equal to half the height and width respectively.
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COBOLdinosaurCommented:
Using canvas indicates you are only supporting modern browsers so do the CSS this way;

canvas { 
      width:800px; height:600px; top:calc(50% - 300px); margin:auto;
}

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The parent element (body or a wrapper, should have position: relative for some browsers.

Cd&
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Angha110Author Commented:
Thank you
0
GaryCommented:
Well if we could just get developers only developing for modern browsers then the rest of us would be happy
0
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