            label: {
                  borderColor: '#333',
                  style: {
                    fontSize: '10px',
                    color: '#333',
                    background: '#FEB019',
                  },
                  text: 'Y-axis range',
                }
              }],
              xaxis: [{
                x: 400,
                x2: 800,
                borderColor: '#00E396',
                label: {
                  borderColor: '#00E396',
                  style: {
     