text: // @link https://vuejs.org/v2/guide/transitions.html#Transition-Classes
  
  export default {
    /**
     * Starting state for enter.
     */
    enterClass: 'opacity-0',
  
    /**
     * Ending state for enter.
     */
    enterToClass: 'opacity-100',
  
    /**
     * Active state for enter.
     */
    enterActiveClass: 'transition-opacity duration-300 ease-in',
  
    /**
     * Starting state for leave.
     */
    leaveClass: 'opacity-100',
  
    /**
     * Ending state for leave.
     */
    leaveToClass: 'opacity-0',
  
    /**
     * Active state for leave.
     */
    leaveActiveClass: 'transition-opacity duration-300 ease-out'
  }
  