body {
  position: relative; /* Ensure the body covers the entire height of the viewport */
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-family: Arial, sans-serif;
}
.toolbar {
  display: flex;
  align-items: center;
  margin-top: 10px;
  margin-bottom: 10px;
    user-select: none;
}
canvas {
  border: 2px solid black;
  background-color: white;
}
footer {
  bottom: 0;
  padding: 10px;
  background-color: #333;
  color: white;
  text-align: center;
    user-select: none;
}
footer p {
  margin: 0;
  text-align: center;
}