/* Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body, html {
  width: 100%;
  height: 100%;
  background: #70c5ce; /* sky blue */
  display: flex;
  justify-content: center;
  align-items: center;
  font-family: sans-serif;
}

.game-container {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: 100%;
}

canvas {
  background: #70c5ce;
  border: 2px solid #333;
  border-radius: 10px;
  max-width: 100%;
  height: auto;
}