body {
  font-family: Arial, sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  margin: 0;
  background: #f7f7f7;
  overflow: hidden;
}
html{
  overflow: hidden;
}

.container {
  text-align: center;
}

canvas {
  z-index: 1;
  border: 2px solid #ccc;
  background: #fff;
  cursor: crosshair;
  overflow: hidden;
}


.buttons {
  margin-top: 10px;
}

button {
  padding: 10px 20px;
  margin: 5px;
  font-size: 16px;
  cursor: pointer;
  border: none;
  background: #007bff;
  color: #fff;
  border-radius: 5px;
}

button:hover {
  background: #0056b3;
}