react-map-gl custom markers don't stay at exact position on zoom code example

Example: react-map-gl custom markers don't stay at exact position on zoom

import React, {PureComponent} from 'react';

const ICON = `M20.2,15.7L20.2,15.7c1.1-1.6,1.8-3.6,1.8-5.7c0-5.6-4.5-10-10-10S2,4.5,2,10c0,2,0.6,3.9,1.6,5.4c0,0.1,0.1,0.2,0.2,0.3
  c0,0,0.1,0.1,0.1,0.2c0.2,0.3,0.4,0.6,0.7,0.9c2.6,3.1,7.4,7.6,7.4,7.6s4.8-4.5,7.4-7.5c0.2-0.3,0.5-0.6,0.7-0.9
  C20.1,15.8,20.2,15.8,20.2,15.7z`;

const pinStyle = {
  cursor: 'pointer',
  fill: '#d00',
  stroke: 'none'
};

export default class CityPin extends PureComponent {

  render() {
    const {size = 20, onClick} = this.props;

    return (
      <svg 
        height={size}
        viewBox="0 0 24 24"
        style={{...pinStyle, transform: `translate(${-size / 2}px,${-size}px)`}}
        onClick={onClick}
      >
        <path d={ICON}/>
      </svg>
    );
  }
}