JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container">
    <div class="content">
        <ul>
            <li class="item">a</li>
            <li class="item">bb</li>
            <li class="item">ccc</li>
            <li class="item">dddd</li>
            <li class="item">eeeee</li>
        </ul>
    </div>
</div>

CSS

.container{
    width: 200px;
    background-color: red;
    overflow-x: scroll;
    white-space: nowrap;
}

.content ul{
    padding: 0px;
    margin: 0px;
}

.item{
    padding: 1px 10px 1px 10px;
    background-color: green;
    border: 1px black solid;
    margin: 1px;
    display: inline-block;
}