Navigating Vertically by Page

Vim also includes a variety of commands that support moving the cursor in page-related increments, which can be convenient when moving the cursor larger distances within a buffer.

To demonstrate how these commands behave, the first sequence of steps navigates down the page using C-D:

Note that the cursor remained at the top of the screen, maximizing the amount of content below the cursor, until it approached the bottom of the buffer. At that point the cursor progressed toward the bottom of the buffer.

Next, navigate back up the page using C-U:

Similar to the previous sequence, while paging upward the cursor remains at the bottom of the screen until it approaches the top of the buffer.