JSFiddle - React, Tailwind, and code Playground

HTML

<div id="navcontainer">
<ul>
<li>Item One</li>
<li>Item Two Two Two Two Two Two Two Two Two Two Two Two Two Two Two Two Two Two</li>
<li>Item Three</li>
<li>Item Four</li>
</ul>
</div>

CSS

#navcontainer ul
{
    margin: 0;
    padding: 0;
    list-style-type: none;
    width: 100%;
}

#navcontainer ul li 
{ 
    display: inline-block;
    border:1px solid black; 
    
    overflow:hidden;
    text-overflow:ellipsis;
    white-space: nowrap;
    max-width: 150px;
}