echart白边在外层

描述:当前是关于Echarts图表中的 折线图 示例。
 
            let myData8 = [
    "1月",
    "2月",
    "3月",
    "4月",
    "5月",
    "6月",
    "7月",
    "8月",
    "9月",
    "10月",
    "11月",
    "12月",
  ];
  let tss = [60, 80, 20, 40, 60, 40, 50, 50, 60, 32, 52, 55, 60];
  let dcl = [40, 55, 50, 60, 30, 20, 60, 30, 20, 10, 30, 20];
  let ycl = [20, 60, 65, 20, 10, 60, 80, 25, 40, 60, 20, 40];
  let option = {
    backgroundColor: "#041D3F",
    tooltip: {
      trigger: "axis",
      axisPointer: {
        lineStyle: {
          color: {
            type: "linear",
            x: 0,
            y: 0,
            x2: 0,
            y2: 1,
            colorStops: [
              {
                offset: 0,
                color: "rgba(0, 255, 233,0)",
              },
              {
                offset: 0.5,
                color: "rgba(255, 255, 255,1)",
              },
              {
                offset: 1,
                color: "rgba(0, 255, 233,0)",
              },
            ],
            global: false,
          },
        },
      },
      textStyle: {
        color: "#fff",
        fontSize: 12,
      },
      backgroundColor: "rgba(17,95,182,0.5)", //设置背景颜色
    },
    grid: {
      containLabel: true,
      bottom: "6%",
      top: "22%",
      left: "2%",
      right: "2%",
    },
    legend: {
      top: "10%",
      right: "14%",
      itemWidth: 16,
      itemHeight: 10,
      itemGap: 30,
      textStyle: {
        fontSize: 14,
        color: "#B6DCF5",
        padding: [0, 0, 0, 4],
      },
    },
    xAxis: {
      data: myData8,
      axisLabel: {
        interval: 0,
        show: true,
        fontSize: 14,
        color: "#B6DCF5",
      },
      axisLine: {
        show: true,
        lineStyle: {
          show: true,
          color: "rgba(54, 153, 255, .4)",
        },
      },
      axisTick: {
        show: false,
      },
    },
    yAxis: [
      {
        name: "次",
        type: "value",
        nameTextStyle: {
          color: "#B6DCF5",
          fontSize: 14,
          align: "center",
          padding: [0, 30, 0, 0],
        },
        // splitNumber: 5,
        axisLabel: {
          show: true,
          fontSize: 14,
          color: "#B6DCF5",
        },
        axisLine: {
          show: false,
          lineStyle: {
            color: "#7FD6FF",
          },
        },
        axisTick: {
          show: false,
        },
        splitLine: {
          lineStyle: {
            color: "rgba(54, 153, 255, .4)",
            type: "dashed",
          },
        },
      },
    ],
    series: [
      {
        name: "投诉数",
        type: "line",
        showSymbol: true,
        symbolSize: 8,
        symbol: "circle",
        lineStyle: {
          normal: {
            color: "#FF8E3C",
          },
        },
        itemStyle: {
          color: "#FF8E3C",
          borderColor: "#fff",
          borderWidth: 2,
        },
        data: tss, // 折线图的数据
      },
      {
        name: "待处理",
        type: "line",
        showSymbol: true,
        symbol: "circle",
        symbolSize: 8,
        lineStyle: {
          normal: {
            color: "#00A0E9",
          },
        },
        itemStyle: {
          color: "#00A0E9",
          borderColor: "#fff",
          borderWidth: 2,
        },
        data: dcl, // 折线图的数据
      },
      {
        name: "已处理",
        type: "line",
        showSymbol: true,
        symbolSize: 8,
        symbol: "circle",
        lineStyle: {
          normal: {
            color: "#02D6B0",
          },
        },
        itemStyle: {
          color: "#02D6B0",
          borderColor: "#fff",
          borderWidth: 2,
        },
        data: ycl, // 折线图的数据
      },
    ],
  };