JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container">
    <div class="content" style="height:600px;">fdsf</div>
</div>

CSS

.container {
    height:200px;
    overflow: auto;
    width: 250px;
    border-bottom: 1px solid #D4D4D4;
}

.container::-webkit-scrollbar-track {
    background-color: #F4F4F4;
}
.container::-webkit-scrollbar {
    width: 6px;
    background: #F4F4F4;
}
.container::-webkit-scrollbar-thumb {
    background: #dad7d7;
}