JSFiddle - React, Tailwind, and code Playground

HTML

<html>
    <body>
        <ol style="border:1px solid red;font-size:100px;">
    <li style="white-space:nowrap;overflow:hidden;text-overflow:ellipsis;">Long list item. Ellipsis works.</li>
</ol>

<ol style="float:left;border:1px solid red;font-size:100px;">
    <li style="white-space:nowrap;overflow:hidden;text-overflow:ellipsis;">Float left list. No ellipsis here.</li>
</ol>
    </body>
</html>