What are some tips and solutions for creating a custom navbar in Webflow that includes logo alignment, centered links with dropdowns, and a right-aligned button, as well as full width dropdowns with up to 6 links? Additionally, how can I properly place tertiary divs for the dropdown interaction, and align dropdown links under specific menu items while keeping the rest centered? Lastly, any suggestions for creating a mobile menu with a left fly in, full screen layout and tappable dropdowns?

Creating a custom navbar in Webflow with various elements and functionality can be achieved by following these steps:

1. Logo Alignment:
To align the logo in the navbar, you can use the built-in Webflow flexbox feature. Place the logo inside a div container and apply the "flexbox" property to the container. Set the "justify-content" to align the logo to the desired position, such as "flex-start" for left alignment, "flex-end" for right alignment, or "center" for center alignment.

2. Centered Links with Dropdowns:
To center the links in the navbar, wrap them inside a div container and apply the flexbox property with "justify-content: center" to the container. For dropdown functionality, you can use the dropdown component in Webflow and place it beneath each link. Make sure to set the dropdown to "display: none" initially and use interactions to show/hide the dropdown on click or hover.

3. Right-Aligned Button:
Similar to the logo alignment, place the button inside a div container and apply the flexbox property with "justify-content: flex-end" to align it to the right of the navbar.

4. Full Width Dropdowns:
By default, dropdowns in Webflow have a width based on the content inside them. To create full-width dropdowns, you can apply custom CSS to the dropdown component. Give the dropdown a class and set its width to "100%". Additionally, you can control the number of links in the dropdown by adjusting the height or using overflow properties like "overflow-y: scroll" if you have more than 6 links.

5. Tertiary Divs for Dropdown Interaction:
To create dropdown interaction, create divs as siblings of the link that is going to trigger the dropdown. These divs will serve as tertiary divs, which will cover the area where the dropdown links will be displayed. Apply relevant class names to these tertiary divs and set their width and height as needed to create the desired interaction area.

6. Dropdown Link Alignment:
To align the dropdown links under specific menu items while keeping the rest centered, you can use CSS positioning. Apply position: absolute to the dropdown links and specify the top and left/right values to position them. You can make use of class names to target specific dropdown links and adjust their position accordingly.

7. Mobile Menu with Left Fly-In, Full-Screen Layout, and Tappable Dropdowns:
For a left fly-in, full-screen mobile menu, you can utilize Webflow's built-in interactions and responsive features. Create a hidden mobile menu on the left side of the viewport and use an interaction to reveal it when the mobile menu button is clicked. Apply a high z-index and set the menu's width to 100% to make it full-screen. Use interactions to animate the menu's entry and exit.

For tappable dropdowns in the mobile menu, use the same dropdown component as in the desktop version. Adjust the dropdown's alignment and styling to suit the mobile layout. Make sure to test the mobile menu across different devices and screen sizes to ensure a smooth user experience.

Remember, customizing your navbar in Webflow may require familiarity with HTML, CSS, and Webflow's design and interaction features. Take advantage of Webflow's tutorials, resources, and community forums for further assistance and inspiration.