Extension:Spoilers

The Spoilers extension adds a spoiler tag that will hide a block of text. If you are searching for a more simple way to hide content on pages, you can be interested by Manual:Collapsible elements.

The spoiler button's show/hide message can be customized for each set.

Spoilers will be hidden on page load.

Usage examples
spoiler_text

spoiler_text

spoiler_text

spoiler_text