body {
  text-align: center;
  background-color: #242424;
}

#level-title {
  font-family: 'Press Start 2P', cursive;
  font-size: 3rem;
  margin:  5%;
  color: #FEF2BF;
}

.container {
  display: block;
  width: 50%;
  margin: auto;

}

.btn {
  margin: 25px;
  display: inline-block;
  height: 200px;
  width: 200px;
  border: 10px solid black;
  border-radius: 20%;
}

#start-btn {
  font-family: 'Press Start 2P', cursive;
  font-size: 3rem;
  margin:  5%;
  color: #FEF2BF;
  background: transparent;
  padding: 3rem;
  
}

.game-over {
  background-color: red;
  opacity: 0.8;
}

.red {
  background-color: red;
}

.green {
  background-color: green;
}

.blue {
  background-color: blue;
}

.yellow {
  background-color: yellow;
}

.pressed {
  box-shadow: 0 0 20px white;
  background-color: grey;
}

@media (max-width: 1125px) {
  body {
    height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
  }

  .container {
    margin: 3rem;
    width: 90%;
  }
  
  .row {
    display: flex;
    justify-content: center;
  }

  .btn {
    margin: 25px;
    display: inline-block;
    height: 300px;
    width: 300px;
    border: 10px solid black;
    border-radius: 20%;
  }
}