JSFiddle - React, Tailwind, and code Playground
HTML
<html>
<div id="foo">
</div>
</html>
JavaScript
var s = '<span><b>Hello</b> World</span>';
$('#foo').append($(s));
<html>
<div id="foo">
</div>
</html>
var s = '<span><b>Hello</b> World</span>';
$('#foo').append($(s));