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# Advent of #markdown, day 1: Thematic breaks
You might have used these separators before, but did you know about all the allowed syntax?
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Hey all, I'm starting this list because I found many surprises while working on an instant messenger with Markdown support. All examples are using GitHub Flavored Markdown (GFM): https://github.github.com/gfm
# Advent of #markdown, day 2: Heading closing sequence #
The heading hash characters we know and love have an evil twin that no one talks about.
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How many instant messengers do you have installed on your phone? I'm at over 20 if I count things like
- Mastodon
- Steam Chat
- LinkedIn: https://www.linkedin.com/in/timokoesters
- Spotify?!: https://newsroom.spotify.com/2025-08-26/introducing-messages-a-new-way-to-share-what-you-love-on-spotify-with-friends-and-family/
# Advent of #markdown, day 3: Link titles
Links can have a title! These are translated to the title attribute in HTML.
Note:
> Relying on the title attribute is currently discouraged as many user agents do not expose the attribute in an accessible manner as required by this specification ([...] excludes keyboard-only users and touch-only users).
https://html.spec.whatwg.org/multipage/dom.html#the-title-attribute
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Are you participating in the Advent of Code? It's a fun way to sharpen your skills: https://adventofcode.com/
Love this series, thanks for making it @timokoesters
A space for Bonfire maintainers and contributors to communicate
