*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background: #1a1a2e;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  font-family: monospace;
  overflow: auto;
}

#gameCanvas {
  display: block;
  border: 3px solid #444;
  border-radius: 4px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.6);
}