message: docs: close lightbox div to fix page display
  PR Close
diff: @@ -161,6 +161,8 @@ To verify that the directive works, click the button to change the value of `con
  <img alt="UnlessDirective in action" src="generated/images/guide/structural-directives/unless-anim.gif">
  +</div>
  +
  ## Structural directive syntax reference
  When you write your own structural directives, use the following syntax:
  