html {
  font-size: 10px;
   background-image: linear-gradient( 99deg,  rgba(115,18,81,1) 10.6%, rgba(28,28,28,1) 118% );
 
}

body,html {
  margin: 0;
  padding: 0;
  font-family: sans-serif;
  
}

.keys {
  display: grid;
  grid-template-columns: 150px 150px 150px;
  position: absolute;
  top:50%;
  left:50%;
  transform:translate(-50%,-50%)
  
}

.key {
  border: .4rem solid black;
  border-radius: .5rem;
  margin: 1rem;
  font-size: 1.5rem;
  padding: 1rem .5rem;
  transition: all .07s ease;
  width: 10rem;
  text-align: center;
  color: white;
  background: rgba(0,0,0,0.4);
  text-shadow: 0 0 .5rem black;
  cursor: pointer;
}

.playing {
  transform: scale(1.1);
  border-color: #ffc600;
  box-shadow: 0 0 1rem #ffc600;
}

kbd {
  display: block;
  font-size: 4rem;
  font-weight: 700;
}

.sound {
  font-size: 1.2rem;
  text-transform: uppercase;
  letter-spacing: .1rem;
  color: #ffc600;
}
.title{
  text-align: center;
  color:#ffc600;
  font-size: 2rem;
  margin-top: 2em;
  font-family: Verdana, Geneva, Tahoma, sans-serif
}
@media (max-width:480px) {
  .keys{
    grid-template-columns: 70px 70px 70px;
    grid-gap: 10px;
  }
  .key{
    width: 5rem;
    height: 5rem;
  }
  kbd {
    font-size: 2.5rem;
  }
  .sound{
  font-size: 1rem;
  }
}