How do I add a small number into my html?

Question

I'm having a difficult time doing this probably because I'm not sure what to even call it. But a client wants me to put a small number one in some text at the end of a sentence - wich indicates that they should find the small 1 at the bottom of the page to read more details about that particular sentence. You see this type of thing a lot on container and supplement labels. Can this be accomplished with html? Please let me know if you need clarification.

Kind of like this except instead of an astrick, a small one:

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Answer 1

You must be looking for superscript.

<p>This is <sub>subscript</sub> text.</p>

<p>This is <sup>superscript</sup> text.</p> 

In practice:

This is _subscript text.

This is ^superscript text.