new Chartist.Line('.ct-chart', {
  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
  }
});