bear.css.observer takes any subdomain from subdomain.bearblog.dev and splits the screen into two panels. On the left is a live preview of the blog content. On the right is an editor where you can tweak the CSS in real-time. As you type, the changes are instantly applied to the preview panel on the left.

To make things more user-friendly, I included some themes that users can select from a dropdown menu. This allows for quick testing of different looks and formatting options without writing CSS from scratch. Submit your theme here.

Once you're happy with the styling, you will have a couple options. You can save the style sheet to localStorage for future sessions. Or you can copy the CSS directly from the editor to your clipboard, making it easy to paste into your bear blog's theme customization area. You can export it as a .css file as well.

Admittedly, it's a silly project, but I thought some people might find it handy to preview styles throughout their site (including inner pages) without mucking about with Overrides.

Note: bear.css.observer is set to <meta name="robots" content="noindex">, and the Playground data is stored in your browser.