content: import React from 'react'
  import styles from './Button.css'
  
  export default (props) => {
    let modifierClass = styles[props.className]
    let btnClass = `${styles.btn}`
  
    if (modifierClass) {
      btnClass = `${btnClass} ${modifierClass}`
    }
  
    return (
      <button onClick={ props.onClick } className={ btnClass }>{ props.children }</button>
    )
  }
  