JSFiddle - React, Tailwind, and code Playground

HTML

<fieldset>
    <legend>
        Some Text
    </legend>
</fieldset>

CSS

fieldset {
    position: relative;
}

fieldset:after {
    content: "Some Text";
    position: absolute;
    margin-top: -25px;
    right: 10px;
    background: #fff;
    padding: 0 5px;
}