content: import React from 'react';
  import Motion from 'react-motion/lib/Motion';
  import spring from 'react-motion/lib/spring';
  import PropTypes from 'prop-types';
  
  const Collapsable = ({ fullHeight, isVisible, children }) => (
    <Motion defaultStyle={{ opacity: !isVisible ? 0 : 100, height: isVisible ? fullHeight : 0 }} style={{ opacity: spring(!isVisible ? 0 : 100), height: spring(!isVisible ? 0 : fullHeight) }}>
      {({ opacity, height }) =>
        <div style={{ height: `${height}px`, overflow: 'hidden', opacity: opacity / 100, display: Math.floor(opacity) === 0 ? 'none' : 'block' }}>
          {children}
        </div>
      }
    </Motion>
  );
  
  Collapsable.propTypes = {
    fullHeight: PropTypes.number.isRequired,
    isVisible: PropTypes.bool.isRequired,
    children: PropTypes.node.isRequired,
  };
  
  export default Collapsable;
  