For a navbar, is sticky or fixed positioning preferable?

Both sticky and fixed positioning can be used for a navbar, but they have different use cases and it ultimately depends on your design and user experience goals. Here are the key differences:

• Fixed positioning: This keeps the navbar in a fixed position relative to the viewport, meaning that it will always stay in the same place on the screen even if the user scrolls down. Fixed positioning can be useful if you have a long page with lots of content, but you want the navbar to always be visible at the top of the screen.
• Sticky positioning: This keeps the navbar in its normal flow until it reaches a certain point on the screen, and then it becomes fixed. This can be useful if you want the navbar to be visible when the user first lands on the page, but you don't want it to take up too much space when they start scrolling.

Ultimately, the choice between fixed and sticky positioning for your navbar will depend on your design goals and the needs of your users. If you have a lot of content on your page, fixed positioning might be better to ensure that the navbar is always visible. If you want to make the most of the screen real estate, sticky positioning could be a better choice.