JSFiddle - React, Tailwind, and code Playground

by Chris Rebert

HTML

<div class="outer">
    <fieldset>
        <div class="inner">a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a</div>
    </fieldset>
</div>
<div id="cover"></div>

CSS

body {
    margin: 10px;
}
#cover {
    background-color: green;
    position: absolute;
    left: 10px;
    top: 10px;
    height: 100px;
    width: 100px;
}
fieldset {
    min-width: 0;/* property under test */
    /* zero these out for cross-browser uniformity */
    border: none;
    margin: 0;
    padding: 0;
}
.outer {
    width: 100px;
}
.inner {
    background-color: red;
    color: red;
    height: 100px;
    overflow: scroll;
    white-space: nowrap;
}