JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://canvasjs.com/assets/script/canvasjs.min.js"></script>

  <div id="chartContainer" style="height: 300px; width: 100%;">
  </div>

JavaScript

var chart = new CanvasJS.Chart("chartContainer", {
  title:{
    text: "Multi-Series Spline Area Chart"  
  },
  data: [{        
    type: "splineArea",
    dataPoints: [
      { x: 10, y: 21 },
      { x: 20, y: 25},
      { x: 30, y: 20 },
      { x: 40, y: 25 },
      { x: 50, y: 27 },
      { x: 60, y: 28 },
      { x: 70, y: 28 },
      { x: 80, y: 24 },
      { x: 90, y: 26}

    ]
  }, {        
    type: "splineArea",
    dataPoints: [
      { x: 10, y: 31 },
      { x: 20, y: 35},
      { x: 30, y: 30 },
      { x: 40, y: 35 },
      { x: 50, y: 35 },
      { x: 60, y: 38 },
      { x: 70, y: 38 },
      { x: 80, y: 34 },
      { x: 90, y: 44}

    ]
  }, {        
    type: "splineArea",
    dataPoints: [
      { x: 10, y: 71 },
      { x: 20, y: 55},
      { x: 30, y: 50 },
      { x: 40, y: 65 },
      { x: 50, y: 95 },
      { x: 60, y: 68 },
      { x: 70, y: 28 },
      { x: 80, y: 34 },
      { x: 90, y: 14}

    ]
  }, {        
    type: "splineArea",
    dataPoints: [
      { x: 10, y: 45 },
      { x: 20, y: 50},
      { x: 30, y: 40 },
      { x: 40, y: 45 },
      { x: 50, y: 95 },
      { x: 60, y: 48 },
      { x: 70, y: 43 },
      { x: 80, y: 41 },
      { x: 90, y: 28}

    ]
  }]
});
chart = sortDataSeries(chart);
chart.render();


function sortDataSeries(chart) {
  for(var i=0 ;i<chart.options.data.length; i++) {
    var maxValue = 0;
    for(var j=0; j<chart.options.data[i].dataPoints.length; j++) {
      if(chart.options.data[i].dataPoints[j].y > maxValue) {
        maxValue = chart.options.data[i].dataPoints[j].y;
      }

    }
    chart.options.data[i].maximumValueInDataSeries = maxValue;
  }

  chart.options.data.sort( function(a, b) {
    if(a.maximumValueInDataSeries > b.maximumValueInDataSeries) {
      return -1;
    } else {
      return 1;
    }
  })
  return chart;
}