JSFiddle - React, Tailwind, and code Playground

HTML

<div class="frame">
    Foo<br />
    Bar<br  />
    Baz<br />
    Help I'm trapped in an HTML factory! 
</div>

CSS

.frame {
    overflow-y: auto;
    border: 1px solid black;
    height: 3em;
    width: 10em;
    line-height: 1em;
}