#mandelbrot {
  padding-left: 0;
  padding-right: 0;
  margin-left: auto;
  margin-right: auto;
  display: block;
}

.mandelbrot-controls {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-top: 20px;
}

.mandelbrot-controls label {
  text-align: center;
}

.mandelbrot-controls input[type="range"] {
  margin: 0 auto;
  width: 80%;
}