body {
  background-color: #011F3F;
  margin: 0;
  text-align: center;
}

#level-title {
  color: #FEF2BF;
  font-family: 'Press Start 2P', cursive;
  font-size: 3rem;
  margin: 4% 5% 2%;
}

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

.btn {
  border: 10px solid black;
  border-radius: 20%;
  display: inline-block;
  height: 150px;
  margin: 25px;
  width: 150px;
}

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

.footer {
  background-color: #FEF2BF;
  border-top-left-radius: 1rem;
  border-top-right-radius: 1rem;
  color: #000;
  font-family: 'Indie Flower', cursive;
  margin-top: 5%;
  padding: 1rem 0rem;
  text-align: center;
}

.footer-header {
  font-size: x-large;
  font-weight: bolder;
}

.footer-ul-links {
  padding: 5px 0;
  margin: 0.5rem 0;
}

.lists-item-inline {
  display: inline;
  padding: 0rem 0.5rem;
}

.footer-links {
  color: #000;
  padding-left: 0px;
  text-decoration: none;
}