html {
  font-size: 10px;
  background: url('./background.jpg') bottom center;
  background-size: cover;
}

body {
  margin: 0;
  padding: 0;
  font-family: sans-serif;
  display: flex;
  align-items: center;
  /* display: grid; */
  justify-items: center;
  height: 100vh; /* Full viewport height */
  width: 100vw;

}

.keys {
  display: flex;
  flex-direction: row;     /* make main axis horizontal (default setting) */
  justify-content: center; /* center items horizontally, in this case */
  align-items: center;     /* center items vertically, in this case */
  height: 50vh;

  background-color:black;
  padding:20px;
  min-width: 100vw;


}

.key {
  border: .4rem solid white;
  border-radius: .5rem;
  margin: 1rem;
  font-size: 1.5rem;
  padding: 1rem .5rem;
  transition: all .07s ease;
  min-width: 10rem;
  text-align: center;
  color: white;

  font-size: 30px;
}

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

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

.sound {
  font-size: 1.2rem;
  text-transform: uppercase;
  letter-spacing: .1rem;
  color: #ffc600;
}