* {
  margin: 0;
  padding: 0;
}

body {
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100vw;
  height: 100vh;
  background-image: url("https://blog.sklambert.com/wp-content/uploads/2012/09/bg.png");
}
body #head {
  position: absolute;
  top: 1rem;
  color: blue;
}

#canvas {
  border: 5px solid white;
  display: flex;
  justify-content: center;
  align-items: center;
  position: absolute;
  z-index: 0;
}

h1 {
  color: red;
  font-family: sans-serif;
  font-size: 4rem;
  position: absolute;
  bottom: 1rem;
}

#player1Score {
  left: 2rem;
}

#player2Score {
  right: 4rem;
}

.endGame {
  color: red;
  position: absolute;
  background-color: darkgreen;
  height: 100%;
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 10rem;
}

#bigAd {
  position: absolute;
  background-color: green;
  display: none;
}

#bigAdComputer {
  position: absolute;
  display: none;
}

#resetBtn {
  position: absolute;
  align-items: center;
  bottom: 1vh;
  color: red;
  padding: 10px 20px;
  border: none;
  border-radius: 25px;
  background-color: blue;
  color: white;
  font-size: 16px;
}