Tailwind CSS: Show-hide an element based on existence of a parent class in Tailwind

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A little-known Tailwind trick using group:

<div class="group is-published">
  <div class="hidden group-[.is-published]:block">
    Show only when parent has class "is-published"
  </div>
</div>

Lessons in this unit:

0:	Introduction
1:	Box model properties
2:	Colors
3:	Typography
4:	Flexbox and Grid in Tailwind
5:	Modifiers
6:	Responsive design in Tailwind
7:	Apply a style to children with Tailwind
8:	How to fix Unknown at rule @tailwindcss (unknownAtRules) in VS Code
9:	How to align center vertically using Tailwind
10:	How to use custom fonts with Tailwind CSS
11:	Setting up Tailwind CSS on Vite
12:	▶︎ Show-hide an element based on existence of a parent class in Tailwind
13:	The Tailwind Cheat Sheet
14:	How to set up Tailwind CSS (v4)
15:	You can’t generate classes dynamically in Tailwind