chart = {
  let container = DOM.element('div');
+
  container.appendChild(stylesheet);
  container.style.height = `${width / 1.6}px`;
  new Chartist.Line(
    container,
    {
      labels: [1, 2, 3, 4, 5, 6, 7, 8],
      series: [
        [1, 2, 3, 1, -2, 0, 1, 0],
        [-2, -1, -2, -1, -2.5, -1, -2, -1],
        [0, 0, 0, 1, 2, 2.5, 2, 1],
        [2.5, 2, 1, 0.5, 1, 0.5, -1, -2.5]
      ]
    },
    {
      high: 3,
      low: -3,
      showArea: true,
      showLine: false,
      showPoint: false,
      fullWidth: true,
      axisX: {
        showLabel: false,
        showGrid: false
      }
    }
  );
  return container;
}