"Lightweight" primarily in that they are not SGML-based.
# TV Tropes Wiki Formatting
```cardlink
url: https://tvtropes.org/pmwiki/pmwiki.php/Administrivia/TextFormattingRules
title: "Text-Formatting Rules / Administrivia - TV Tropes"
description: "This page provides a more complete list of some of the markup sequences available in TV Tropes wiki pages and forum posts. Note that it's easy to create and edit pages without using any of the markups below, but if you ever need them, they're …"
host: tvtropes.org
favicon: https://assets.tvtropes.org/img/icons/favicon-16x16.png
image: https://static.tvtropes.org/logo_blue_small.png
```
## Spoiler
Weirdly, they used a link-style format for spoiler tags:
```
[[spoiler:Text to be hidden]]
```
# Discord
## Spoiler
```
||this is a spoiler||
```
```cardlink
url: https://support.discord.com/hc/en-us/articles/360022320632-Spoiler-Tags-
title: "Spoiler Tags!"
description: "Don't you just hate it when you have that one friend that tells you that Wumpus McWumperton dies in the next season of Discord High? We now have a solution for you! Introducing Spoiler Tags! How..."
host: support.discord.com
favicon: https://theme.zdassets.com/theme_assets/678183/84b82d07b293907113d9d4dafd29bfa170bbf9b6.ico
image: https://theme.zdassets.com/theme_assets/678183/cc59daa07820943e943c2fc283b9079d7003ff76.svg
```
# Stack Exchange
## Spoiler
```
>! A multi-line spoiler
>! has ! multiple times
```
```cardlink
url: https://meta.stackexchange.com/questions/72877/whats-the-exact-syntax-for-spoiler-markup
title: "What's the exact syntax for spoiler markup"
description: "Following the Do we want the “spoiler” feature turned off? thread on meta.tex.sx, it's clear that the spoiler markup has a wrinkle or two that I didn't at first appreciate. For information's sake,..."
host: meta.stackexchange.com
image: https://meta.stackexchange.com/Content/Sites/stackexchangemeta/Img/
[email protected]?v=c34d758b103d
```
# Reddit
Reddit uses their own flavor of [[Markdown]] with very few deviations from the baseline.
```cardlink
url: https://support.reddithelp.com/hc/en-us/articles/360043033952-Formatting-Guide
title: "Formatting Guide"
description: "New Reddit-flavored MarkdownMarkdown is the format in which content is written on Reddit. This is a guide to Reddit's particular flavor of Markdown, updated for New Reddit, and current as of Septe..."
host: support.reddithelp.com
favicon: https://theme.zdassets.com/theme_assets/551444/c4016e1709cd67b12f42647ef225abd0b0314b53.png
image: https://theme.zdassets.com/theme_assets/551444/5da79b81b661eb78fdeebb93e169f28e01a51248.png
```
## Spoiler
Reddit's looks a lot like Stack Exchange, except it is clearly based on text formatting styles like bold and italic rather than the markdown blockquote.
```
>!this is a spoiler!<
```
# Cohost
Cohost is built on Markdown.
## Cohost Markdown Plus
Cohost Markdown Plus generates HTML from an extended version of Markdown and was linked to from Cohost's [Third Party Tools Page](https://help.antisoftware.club/support/solutions/articles/62000230108-third-party-cohost-tools).
```cardlink
url: https://oat.zone/markdown-plus/
title: "markdown PLUS"
description: "markdown PLUS is an \"alternative\" to markdown for cohost which lets you use fucked-up text in your everyday posts."
host: oat.zone
image: https://oat.zone/markdown-plus/bn_logo.png
```
[Archive Link](https://web.archive.org/web/20241217212935/https://oat.zone/markdown-plus/) for when it goes offline.
### Spoiler
While Cohost's flavor of markdown doesn't have a spoiler tag,
```markdown
||this is a spoiler||
```
### Effects
It often uses a paired paren syntax for specifying text effects.
```
!(shaky letters)!
?(blurry text)?
<(glowy text)>
~(wavy text)~
^(bouncy text)^
```
### Colors
```markdown
[fg red bg black]ALERT[/]
[#ff3333]Evil text[/#ff3333]
[#ff0000:#00ff00:#0000ff]this gradient is fucking ugly[/]
```
# Slack
## Spoiler
There is no built in support for spoiler tags, but there is a Slack "app" for it which uses this syntax:
```
/spoiler this spoiler message [optional title]
```
```cardlink
url: https://slack.com/apps/A2M2PF734-spoiler?tab=features
title: "Spoiler"
description: "Did everyone on your team see The Force Awakens, except for Carl? Spoiler allows you to post a spoiler alert message in a channel. A team member only sees it if that team member clicks to reveal it."
host: slack.com
image: https://a.slack-edge.com/80588/marketing/img/meta/slack_hash_256.png
```
# Various
Okay this is largely SGML-based, but still interesting.
- Disqus
- IGN Wiki
- Goodreads
## Spoiler
```html
<spoiler>This is a spoiler.</spoiler>
```
- https://www.goodreads.com/blog/show/261-spoiler-tags
- https://help.disqus.com/en/articles/1717306-spoiler-tags