Spoiler Plugin for phpBB
There is no styling involved - add it directly or modify your theme accordingly. Tested with version 3.0.12 and 3.1.3, should work in any other version too.
BBCode Usage:
[spoiler]{TEXT}[/spoiler]
HTML Replacement:
<div class="spoiler">
<button class="spoilerbutton" onclick="parent = this.parentNode.getElementsByTagName('div')[0].style; if(parent.display != 'block') { parent.display = 'block';} else { parent.display = 'none';}" type="button">Spoiler</button>
<div class="spoilertext" style="display: none;">{TEXT}</div>
</div>
Help Line:
Hidden text: [spoiler]hidden text here[/spoiler]
Explanation: The markup consists of a button to toggle the spoiler text and a div which contains the said text. Upon clicking at the button it will access the div containing the spoiler text, check it's display status and change it to show/hide it. That's it :)
{{ 'Comments (%count%)' | trans {count:count} }}
{{ 'Comments are closed.' | trans }}