So one feature that I really wish markdown had was support for really small tiny text. Which I just produced by using the <sup> tag. I think this could be implemented by using the caret symbol like so:

So this is normal text ^and this is tiny text^.

Is this a reasonable feature request? Also what ideas do you have for markdown expansion?

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    And how about <sub>? And <small>? IIRC the request to add <small> was denied. But you can (ab)use <sup><sub> for this. – BalusC Jun 16 '10 at 2:55
  • @BalusC: Well I just want tiny text in general. I wouldn't mind if they used my ^ symbol and just applied some CSS to make the text smaller. I don't really care if the text is actually above or below the normal text. – Kredns Jun 16 '10 at 3:09
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    @Jon: WOW! I just looked at your edit and I can't believe I spelled it like that. – Kredns Jun 16 '10 at 3:11
  • Haha, did you manage to grab any lettuce for your carrots? – Jared Harley Jun 16 '10 at 3:15
  • Already exists in WikiText. – neverMind9 Jun 18 '19 at 21:15

Workaround: have you tried combining the <sup> and <sub> tags?

If you layer them like this, <sub><sup>combining the two tags</sup></sub>, you get tiny text that's almost in line with the normal text. Nice for making very small caveats to your answers!

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    Thanks for the idea, but still thats a lot of typing! – Kredns Jun 16 '10 at 3:39
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    Clever. For some reason I always pictured them canceling each other out, which is patent nonsense – Michael Mrozek Jun 16 '10 at 4:43
  • @Jared, What's the browser compatibility like? – Pacerier May 12 '14 at 8:46
  • @MichaelMrozek Why is it patent nonsense? Still confused as to why exactly they don't. – Prometheus Oct 16 '18 at 16:15
  • @Hashim They both make the text smaller, just the positioning is different, so nesting them is going to shrink the text twice – Michael Mrozek Oct 16 '18 at 16:23
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    Order is important here. <sup><sub>...<\sub><\sup> was a bit above center. The suggested <sub><sup>...<\sup><\sub> was more centered. – ChrisFreeman Apr 25 '19 at 16:40
  • brilliant, thanks! – pietro909 Oct 1 at 17:36

<sub>+<sup> seems like a horrible answer, really. You're mangling your HTML markup to get a particular display style with completely different semantic meaning — and you're assuming default display implementations of <sub> and <sup> while you're at it.

I would love a <small> or "footnote" markdown syntax too (that's how I got here), but as far as I can tell, the only reasonable way to add it to your documents is using the HTML tag itself.

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    <Pedantry>Its not HTML markup its Markdown </Pedantry> – Some Helpful Commenter Apr 6 '12 at 15:55
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    Ha, well if you're using tags and not Markdown syntax, it's HTML. You can use both in the same context. – RobW Apr 6 '12 at 20:52

Normal text
Small text
Tiny text


Normal text
<sub><sup>Small text</sup></sub>
<sub><sup><sub><sup>Tiny text</sup></sub></sup></sub>
<sub><sup><sub><sup><sub><sup><sub><sup><sub><sup><sub><sup><sub><sup><sub><sup>REALLY SMALL TEXT</sup></sub></sup></sub></sup></sub></sup></sub></sup></sub></sup></sub></sup></sub></sup></sub>
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    Well done, the answered 2 hours ago link killed the internets. – user7116 Sep 22 '11 at 20:56
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    @sixlettervariables fixing that up... seems Null found an ages-old bug in our "quick edit" route. – Jarrod Dixon Sep 23 '11 at 6:59
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    @sixlettervariables success! – Jarrod Dixon Sep 23 '11 at 7:35
  • @JarrodDixon: many thanks sir. The tubes are now accepting the dump truck loads of data I have for them. – user7116 Sep 23 '11 at 13:38

see R Markdown - changing font size and font type in html output this works fine - small top link:

## <a name="Some-setup"></a>Somesetup [<font size="2">top</font>](#Content)
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