[poorking]

dmitriymar,
Странно, вроде все как обычно

<canvas style = "border: 1px solid red;" id = ":cnv"></canvas>
<script type = "text/javascript">
var cnv = document.getElementById(":cnv");
	//разрешение
	cnv.width = "75";
	cnv.height = "25";
	
	//размер
	cnv.style.width = "150px"
	cnv.style.height = "50px"
	
	alert("res = " + cnv.width+" x "+ cnv.height +"\nstyle = " +cnv.style.width+" x " + cnv.style.height)

</script>