body {
  text-align: center;
  background-color: #002622;
  margin: 0;
  padding: 0;
}

.header{
  background-color: #004D45;
  padding: 2% 2%;
}

#level-title {
  font-family: 'Open Sans', sans-serif;
  font-size: 3rem;
  margin:  2% 0 1% 0;
  color: #00FFE5;
}

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

}

.btn {
  margin: 25px;
  display: inline-block;
  height: 200px;
  width: 200px;
  border: 10px solid #004D45;
  border-radius: 100%;
}

.game-over {
  background-color: #930000;
  opacity: 0.8;
}

.red {
  background-color: #002B26;
}

.green {
  background-color: #005951;
}

.blue {
  background-color: #009384;
}

.yellow {
  background-color: #00FFE5;
}

.pressed {
  box-shadow: 0 0 20px #009384;
  background-color: #00D9C4;
}

.footer p{
  font-family: 'Open Sans', sans-serif;
  font-size: 1.5rem;
}

.footer{
  color: #00FFE5;
  background-color: #004D45;
  padding: 1% 1%;
}