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

html, body {
  height: 100%;
  margin: 0;
  background: linear-gradient(to top, #2c3e50 0%, #ff5e84 30%, #ff8ea8 60%, #ffd1a9 100%);
  display: flex;
  justify-content: center;
  align-items: center;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  overflow-x: hidden;
}


#canvas1 {
    border: 5px solid black;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    max-width: 100%;
    max-height: 100%;
}

#player, #layer1, #layer2, #layer3, #layer4, #layer5, #enemy_fly,
#enemy_plant, #enemy_spider_big, #fire, #collisionAnimation, #lives {
    display: none;
}