C3js horizontal bar chart labels cut off and sizing issue

 var colors = ['#0065A3', '#767670', '#D73648', '#7FB2CE', '#00345B'];
var padding = 5;


data= [
['veryveryveryveryverylongdatalabel01', 439034],
['veryveryveryveryverylongdatalabel02', 413664],
['veryveryveryveryverylongdatalabel03', 351376],
['veryveryveryveryverylongdatalabel04', 349932],
['veryveryveryveryverylongdatalabel05', 316490],
['veryveryveryveryverylongdatalabel06', 315039],
['veryveryveryveryverylongdatalabel07', 285908],
['veryveryveryveryverylongdatalabel08', 285681],
['veryveryveryveryverylongdatalabel09', 285215],
['veryveryveryveryverylongdatalabel10', 203248],
['veryveryveryveryverylongdatalabel11', 200508],
['veryveryveryveryverylongdatalabel12', 195508],
['veryveryveryveryverylongdatalabel13', 195058],
['veryveryveryveryverylongdatalabel14', 193508],
['veryveryveryveryverylongdatalabel15', 185508],
['veryveryveryveryverylongdatalabel16', 180508],
['veryveryveryveryverylongdatalabel17', 177508]
];

var totalDataValue = 0
data.forEach(function(d){
	totalDataValue+=d[1];
});


var chart1 = c3.generate({
  bindto: d3.select('#chart1'),
  data: {
    columns: data,
    type: 'bar',
    labels: {format : function(v, id) {return id + ": " + d3.format(",.0f")(v) + " ["+d3.format(".2%")(v/totalDataValue)+"]"; }}
  },
  bar: {
  	width: { ratio: 1}
  },
  legend: {
    show: false,
  },
  tooltip: {
    show: true,
    format: {
      value: function(value) {
        return d3.format(",.0f")(value);
      }
    }
  },
  zoom: {
    enabled: true
  },
  axis: {
    x: {
      show:false,
      type:'category',
      categories: ['value1']
      },
    y: {
      show:false
    },
    rotated: true
  }
  });

#chart1 {
  width: 600px;
  height: 400px;
}

<link href="https://cdnjs.cloudflare.com/ajax/libs/c3/0.7.10/c3.min.css" rel="stylesheet" />
<script src="https://d3js.org/d3.v5.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/c3/0.7.10/c3.min.js"></script>
<div id="chart1" class "c3">

</div>