JSFiddle - React, Tailwind, and code Playground

by Luiz Silva

HTML

<input type="text" id="i1" value=""/>
<select id="s1"><option></option></select>
<textarea id="ta1"></textarea>
<hr/>
<input type="text" id="i1" value="a"/>
<select id="s2"><option value="v">valor</option></select>
<textarea id="ta2">blabla</textarea>

<button>Validar</button>

JavaScript

$('button').click(function() {
    $('input[value=""], textarea:empty')
        .css('border', '1px solid #f00')
});