ArcHub - How to Create Header Fullscreen Project
First of all, enable Elementor for Header type posts from Elementor settings. It is disabled by default.
Create a new header and press Edit with Elementor button.
Search for "fullscreen" in the Elementor widget search and drag the Liquid Header Fullscreen Project widget onto the page.
After adjusting the general widget settings according to your own taste, click the Add Item button and start adding your projects with their details.
Lastly, you can make typography and color adjustments from the Style tab. To see your changes in the live preview, click the All Projects button that you have added to the page.