diff --git a/gridfader.js b/gridfader.js
index 9d8dda6..49871e3 100755
--- a/gridfader.js
+++ b/gridfader.js
@@ -72,8 +72,8 @@ var GridFader = function(canvasId) {
 
 	var Environment = {
 		SetCanvasSize: function() {
-			self.canvas.height = window.innerHeight;
-			self.canvas.width = window.innerWidth;
+			self.canvas.height = self.canvas.clientHeight;
+			self.canvas.width = self.canvas.clientWidth;
 		}
 	};
 
diff --git a/index.html b/index.html
index 020818d..3bba1b5 100644
--- a/index.html
+++ b/index.html
@@ -2,6 +2,7 @@
 <html>
 	<head>
 		<title>gridfader.js Demo</title>
+		<meta charset="utf-8" /> 
 
 		<style>
 			* {
@@ -18,6 +19,7 @@
 			#gridfader {
 				display: block;
 				height: 100%;
+				width: 100%;
 			}
 		</style>
 	</head>
