JSFiddle - React, Tailwind, and code Playground

HTML

<label><input id="chk" type="checkbox" checked="checked" /> Toggle Message</label>
<p id="message">This is the message.</p>

CSS

body {
    padding: 50px;
    font-family: sans-serif;
}
#message { color: green }

JavaScript

$("#chk").change(function() {
    $("#message").toggle($("#chk").is(":checked"));
});