JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/echarts/4.7.0/echarts.min.js"></script>
<div id ="themeChart"></div>

CSS

#themeChart{
  height:80vh;
  width:100vw;
}

JavaScript

const seriesName = 'A Series name';

option = {
		legend: {
    	show: true,
      data: ['A Series name', 'B Series name',
      	'C Series name', 'D Series name',
        'E Series name', 'F Series name',
        'G Series name', 'H Series name',
        'I Series name', 'J Series name',
        'K Series name', 'L Series name',
        'M Series name', 'N Series name',
        'O Series name', 'P Series name',
      ],
      selector: true,
//      left: '10%',
//      right: '10%',
    },
		tooltip: {
    	show: true,
      trigger: 'axis'
    },
    xAxis: {
        type: 'category',
        data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']
    },
    yAxis: {
        type: 'value'
    },
    series: [{
    		name: seriesName,
        data: [820, 932, 901, 934, 1290, 1330, 1320],
        type: 'line'
    },
    {
    	name: 'B Series name',
      type: 'line'
    },
    {
    	name: 'C Series name',
      type: 'line'
    },
    {
    	name: 'D Series name',
      type: 'line'
    },
    {
    	name: 'E Series name',
      type: 'line'
    },
    {
    	name: 'F Series name',
      type: 'line'
    },
    {
    	name: 'G Series name',
      type: 'line'
    },
    {
    	name: 'H Series name',
      type: 'line'
    },
    {
    	name: 'I Series name',
      type: 'line'
    },
    {
    	name: 'J Series name',
      type: 'line'
    },
        {
    	name: 'K Series name',
      type: 'line'
    },
        {
    	name: 'L Series name',
      type: 'line'
    },
        {
    	name: 'M Series name',
      type: 'line'
    },
        {
    	name: 'N Series name',
      type: 'line'
    },
        {
    	name: 'O Series name',
      type: 'line'
    },
     {
    	name: 'P Series name',
      type: 'line'
    },
    ]
};


const chart = echarts.init(document.getElementById('themeChart'))
chart.setOption(option)