text: import React from 'react'
  import { underBarStyle } from '../bits/note-utils';
  const UnderBar = ({
    kr0, kr1, level, ntSizeRatio
  }) => {
    const space = ntSizeRatio * 1;
    const x0 = kr0.x;
    const x1 = kr1.x + kr1.width;
    const y = kr0.y + kr0.height + (space * (level + 1))
    return <line x1={x0} y1={y} x2={x1} y2={y} style={underBarStyle}/>
  }
  export default UnderBar