title: Changing data-caption in FancyBox 3
body: <p><a href="https://i.stack.imgur.com/1Xb9K.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/1Xb9K.png" alt="Example"></a></p>
  
  <p>I need to replace data-caption width right white box with custom comments area. </p>