Techniques and apparatuses for a scrollbar for dynamic content are described herein. In one or more implementations, a portion of initial content is displayed in a user interface along with a scrollbar configured for selection to navigate to other portions of the initial content. While the scrollbar is selected, dynamic content for display in the user interface is detected. In response, a dynamic scroll mode for the scrollbar is activated to enable navigation to the initial content and the dynamic content. The dynamic scroll mode dynamically adjusts one or more scroll ratios of the scrollbar without changing a visual position of the scrollbar's thumb.