A few custom properties and the :has() selector make color theming super easy to do! Add in a bit of JS and we can save the user’s preferences in localStorage, and we’re good to go!

Of course, :has() support isn’t perfect, but we can build in a quick fallback with just a little bit more JS.

Links
✅ The code from this video: https://codepen.io/kevinpowell/pen/MW...
✅ More on visuallyhidden: https://www.scottohara.me/blog/2017/0...
✅ Current support for :has() https://caniuse.com/?search=%3Ahas()

⌚ Timestamps
00:00 Introduction
00:57 What we’re starting with
01:58 Setting up the color theme selector
04:04 Hiding the labels
05:39 Styling the color theme picker
12:05 Adding functionality with :has()
13:48 Using localStorage to remember the users choice
23:52 Adding a fallback for when there is no :has() support

Corrections:
24:54 I should have made separate selectors here, as this won't work in Firefox see codepen in description for a working version
27:20 Because I moved this here, the theme should have been changed to activeTheme see codepen in description for a working version

#css



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