Template:SpoilerText
From questden
This had a fancy fade-in effect on hover, but it turns out that it only worked on the preview page, so I had to settle for this garbage.
The syntax is just {{SpoilerText|text=Hidden Text Here}}.
For inline spoilers (no red text appending it), use {{SpoilerText|text=Inline Hidden Text Here|inline=1}}.
Example:
Hidden Text Here
Spoiler Text
Highlight to Expose
Here's some inline hidden text in a sentence.
