When users scroll up and down through content, tabs can behave in two main ways: they can either be fixed at the top of the screen, or they can scroll off the screen.

• Fixed tabs remain visible at the top as users navigate through the content. This approach keeps navigation options readily accessible, making it easy for users to switch between sections without having to scroll back to the top. For example, a news app might use fixed tabs to allow users to easily switch between "Headlines," "Sports," and "Entertainment" while reading articles.
• Scrollable tabs can scroll off the screen with the content. In this case, the tabs disappear as users scroll down, but reappear when they scroll back up. This method maximizes screen space for content, which can be particularly useful for content-heavy pages. For instance, on a product page in an e-commerce app, scrolling tabs might allow users to focus on product details and images, with the tabs reappearing when they need to navigate to related products or reviews.