Alignment of footnote markers in Preview

I’m looking for help. I am trying to make footnotes in Preview appear as superscript. One image below shows the desired format; the other is the format in Preview.

I tried every variation of the following, but can’t get the footnote marker to move. Thanks in advance.

li::marker {
vertical-align: super;
position: relative;
top: -0.2em;
font-size: 0.90em;

no sup Image 10-27-21 at 1.07 PM
sup Image 10-27-21 at 1.06 PM

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