#level-title {
  font-family: 'Press Start 2P', cursive;
  font-size: 3rem;
  margin:  3%;
}
#high-score{
  font-family: 'Press Start 2P', cursive;
  margin-top: 3%;
  padding: 0%;
  font-size: 1.5rem;
}

#group{
  display: flex;
  justify-content: space-around;
  margin-top: 70px;
}

.container {
  display: block;
  width: 100%;

}

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

.red {
  background-color: red;
}

.green {
  background-color: green;
}

.blue {
  background-color: blue;
}

.yellow {
  background-color: yellow;
}
a{
  color: #4CAF50;
  margin: 0%;
  padding: 0%;
}

#start-btn,#guide-btn{
  font-family: 'Press Start 2P', cursive;
  font-size: 1.5rem;
  margin: 10px;
  padding: 7px 15px;
  color: #4CAF50;
  background-color: #011F3F;
  border: none;
  border-radius: 5px;
  cursor: pointer;
}

#start-btn:hover, #guide-btn:hover {
  background-color: #022F5F;
}
#sound-controls{
  margin:40px;
  float: left;
}
#mute-button {
  font-family: 'Press Start 2P', cursive;
  font-size: 1rem;
  margin-right: 10px;
  padding: 10px 20px;
  color: white;
  background-color: #011F3F;
  border-radius: 10%;
}

#volume-slider {
  -webkit-appearance: none;  
  -moz-appearance: none;
  appearance: none;
  width: 200px;
  height: 10px;
  background: #011F3F;  ;
  opacity: 0.7;
  transition: opacity .2s;
  border-radius: 5px;
}
#volume-slider:hover {
  opacity: 1;
}

#volume-slider::-webkit-slider-thumb {
  -webkit-appearance: none; 
  appearance: none;
  width: 25px;  
  height: 25px; 
  background: white; 
  cursor: pointer;
  border-radius: 50%;
}

#volume-slider::-moz-range-thumb {
  width: 20px;  
  height: 20px; 
  background: white; ;
  border-radius: 50%;
}

#volume-slider::-ms-thumb {
  width: 20px;  
  height: 20px; 
  background: white; 
  cursor: pointer;
  border-radius: 50%;
}



body {
  text-align: center;
  background-color: #57142e;
}
.btn {
  margin: 25px;
  display: inline-block;
  height: 200px;
  width: 200px;
  border: 10px solid #4CAF50;
  border-radius: 50%;
}

.pressed {
  box-shadow: 0 0 20px white;
  background-color: #333;

}
#level-title, #high-score {
  color: #4CAF50;
}