JSFiddle - React, Tailwind, and code Playground
HTML
<p>Listbox should display red text.</p>
<select size="5">
<option value="1">one</option>
<option value="2">two</option>
<option value="3">three</option>
<option value="4">four</option>
</select>CSS
:valid { color: green;}
select:valid { color: red; }