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

body {
  font-family: 'Noto Sans TC', sans-serif;
  background-color: black;
  display: flex;
  flex-direction: column;
  padding: 1rem;
  align-items: center;
}

.hidden {
  display: none;
}

#myCanvas {
  border: 3px solid #bfffbf;
  position: absolute;
  top: 60%;
  left: 50%;
  transform: translate(-50%, -50%);
}

#myScore {
  margin-top: 3rem;
}

#myScore,
#myScore2 {
  color: white;
  font-size: 1.5rem;
  padding: 10px;
}

#start {
  padding: 0.25rem 0.5rem;
  background-color: yellow;
  border: none;
  border-radius: 10px;
  font-size: 1.15rem;
  display: block;
  margin-top: 3rem;
  transition: all 0.2s ease;
}

button#start:hover {
  cursor: pointer;
  transform: scale(1.2);
}

#rule {
  color: white;
  margin-top: 1.5rem;
  position: absolute;
  top: 80%;
  left: 45%;
}

#pause {
  color: black;
  background-color: white;
  font-size: 1.5rem;
  padding: 0.25rem 0.5rem;
  position: absolute;
  top: 60%;
  left: 50%;
  transform: translate(-50%, -50%);
}