I put bars with fixed width and fixed gap.

but How can I align them to left? like the following image.

option = {
  xAxis: {
    type: 'category',
    data: ['Mon', 'Tue'],
  },
  yAxis: {
    type: 'value'
  },
  series: [
    {
      data: [120, 200],
      type: 'bar',
      barWidth: 20,
      barGap: 30,
      barCategoryGap: 30,
      align: 'left'
    }
  ]
};