JSFiddle - React, Tailwind, and code Playground

HTML

<ul>
    <li></li>
    <li></li>
    <li></li>
    <li></li>
    <li></li>
    <li></li>
    <li></li>
    <li></li>
</ul>

CSS

ul {
    width:164px;
    float:left;
    overflow-y: scroll;
    overflow-x: hidden;
    max-height:100px;
    list-style:none;
    margin:0px;
}
li {
    width:80px;
    height:80px;
    background-color:red;
    border:1px solid blue;
    margin:0px;
    float:left;
}