JSFiddle - React, Tailwind, and code Playground

HTML

<ol id="romans" start="3998">
    <li>Item 3998</li>
    <li>Item 3999</li>
    <li>Item 4000</li>
    <li>Item 4001</li>
</ol>

CSS

#romans {list-style: upper-roman; margin-left:6em;}