style.css

#game {
  position: absolute;
  width: 800px;
  height: 600px;
  background-color: #2c3e50;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  align-items: center;
}

.line {
  content: "";
  position: absolute;
  width: 3px;
  height: 100%;
  background-color: white;
  left: 50%;
  transform: translateX(-50%);
}

.circle {
  content: "";
  position: absolute;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  border: 3px dashed white;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}

#game > * {
  position: absolute;
}

#score {
  display: flex;
  justify-content: space-between;
  width: 800px;
  font-size: 24px;
  margin: 2px auto;
}

#playerScore {
  display: inline-block;
  width: 300px;
  text-align: center;
  padding: 10px 0;
  color: black;
}

#computerScore {
  display: inline-block;
  width: 300px;
  text-align: center;
  padding: 10px 0;
  color: black;
}