JSFiddle - React, Tailwind, and code Playground

CSS

div {
    border : black solid 1px;
}

customelement {
    border : red solid 1px;
}

JavaScript

$('<div>as<customelement id="elemid" guid="godzilla-ffeeaa" crocodile="ofcourse">da</customelement>sd</div>')
    .appendTo(document.body);