html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  overflow: hidden;
  background-color: #f0f0f0; // Light grey background for the page
}

#sketch-container {
  position: absolute;
  box-shadow: 0 0 20px rgba(0,0,0,0.3); // This adds a shadow around the canvas
  background-color: white; // White background for the frame
  padding: 20px; // This creates the frame effect
}

canvas {
  display: block; // Removes any extra space below the canvas
}