body {
  font-family: system-ui;
  color: white;
  background: black;
}

.cols {
  display: flex;
  height: 100%;
  gap: 10px;
}

.col {
  flex: 1;
  min-height: 0;
  min-width: 0;
}

.controls {
  padding: 10px;
  border: 1px dashed aqua;
}

.row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 5px 0;
}

canvas {
  width: 100%;
  height: 100%;
}

@media(max-width: 500px) {
  .cols {
    flex-direction: column;
  }
}