body{
    text-align: center;
  background-color: #011F3F;
}

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

.btn{
width: 220px;
height: 220px;
margin: 25px;
border: 10px solid black;
border-radius: 20%;

}

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

.green{
background-color: green;
}

.red{
background-color: red;
}

.yellow{
background-color: yellow;
}

.blue{
    background-color: blue;
}

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