Instant Breaking News (IBN) is a FREE WordPress plugin which will allow you to pin posts and feature them as “Breaking News” at the header of your website.

Get the free IBNplugin from here.

Note:
Currently it's designed to work with every WordPress base theme. But if you would like to connect it with a custom template, it'll require a bit of touches.

Check the source code at GitHub.

What's the tech stack?

Backend:

→ WordPress Core (PHP)

Frontend:

→ JavaScript (jQuery)
→ SCSS (CSS preprocessor)