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

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

.keys {
  display: flex;
  flex: 1;
  min-height: 100vh;
  align-items: center;
  justify-content: center;
}

.key {
  border: .4rem solid white;
  border-radius: .5rem;
  margin: 1rem;
  font-size: 1.5rem;
  padding: 1rem .5rem;
  transition: all .07s ease;
  width: 5rem;
	height: 14rem;
  text-align: center;
  color: black;
  background: rgba(255, 255, 255, 0.70);
  text-shadow: 0 0 .5rem white;
	display: flex;
	flex-direction: column;
	justify-content: center;
}

.sharp {
  border: .4rem solid black;
  width: 4rem;
	height: 12rem;
  color: white;
  background: rgba(0, 0, 0, 0.40);
  text-shadow: 0 0 .5rem black;
	margin-bottom: 3rem;
}

.playing {
  transform: scale(1.1);
  border-color: #d14009;
  box-shadow: 0 0 1rem #d14009;
}

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

.sound {
  font-size: 1.3rem;
  text-transform: uppercase;
  letter-spacing: .1rem;
  color: #d14009;
}