styles.css

body {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100vh;
  margin: 0;
  background-color: #333333;
}

.grid {
  display: grid;
  grid-template-columns: repeat(32, 1fr);
  grid-template-rows: repeat(4, 1fr);
  grid-gap: 8px;
}

.cell {
  width: 30px;
  height: 40px;
  background-color: grey;
  cursor: pointer;
}

.cell.row1 {
  background-color: grey;
}

.cell.row1.on {
  background-color: #fc7442;
}

.cell.row2 {
  background-color: grey;
}

.cell.row2.on {
  background-color: #fdc334;
}

.cell.row3 {
  background-color: grey;
}

.cell.row3.on {
  background-color: #fee934;
}

.cell.row4 {
  background-color: grey;
}

.cell.row4.on {
  background-color: #fdfffe;
}


button {
  margin-top: 20px;
  font-size: 1.5rem;
  padding: 10px 20px;
  cursor: pointer;
  background-color: grey;
  color: #333333;
  border: none;
  border-radius: 4px;
}

button.play {
  background-color: #grey;
}

button.play:hover {
  background-color: #fdfffe;
}

button.stop {
  background-color: grey;
}

button.stop:hover {
  background-color: #fdfffe;
}