JSFiddle - React, Tailwind, and code Playground

HTML

<div id="checkboxgroup">
  <input type="checkbox" name="mycheckbox1" />
  <input type="checkbox" name="mycheckbox2" />
  <input type="checkbox" name="mycheckbox3" />
  <input type="checkbox" name="mycheckbox4" />
</div>

<div id="showme" style="display: none">Show me</div>

JavaScript

var MyCheckboxes=$("#checkboxgroup input:checkbox");

MyCheckboxes.change(function() {
  $("#showme").toggle(MyCheckboxes.is(":checked"));
});