How to use spoilers tags in ftle

Built in Feature!

<details class="spoiler">
  <summary>Click to reveal</summary>
  <div class="spoiler-body">

The hidden content goes here. This can include **markdown**, but only if you leave a blank line after the opening tag.
  </div>
</details>

Renders like this:

Click to reveal

The hidden content goes here. This can include markdown, but only if you leave a blank line after the opening tag.

Please note that indenting the text inside the html can create a potentially unwanted indented code block.