JSFiddle - React, Tailwind, and code Playground

HTML

<div id="parent">
    <div id="child">
        <div>Line 1</div>
        <div>Line 2</div>
        <div>Line 3</div>
    </div>
</div>

CSS

#parent {
    border: 4px solid #000;
}

#child {
    border: 4px solid #888;
    height: 2.5em;
    margin: 0;
    padding: 8px 20px;
    overflow: auto;
}