JSFiddle - React, Tailwind, and code Playground

HTML

<div>
<form>
    <select id="thelist" size="4">
        <option value="1">One</option>
        <option value="2">Two</option>
        <option value="3">Three</option>
        <option value="4">Four</option>
    </select>
</form>
</div>

CSS

div {
    background-color: #fff0f0;
    height: 40em;
    padding: 1.5em 1.5em 0 1.5em;
}
form {
    background-color: #f0f0f0;
    height: 90%;
}
#thelist {
    height: 100%;
}