How to pitch the viewport camera?

There seems to be half a dozen ways to zoom in and out (I only need one), but I cannot find a way to pitch the camera up in the viewport. I’m not seeing anything in the documentation or on google saying there is a way to pitch the camera up or down. Is it possible? The camera is pitched at a less than ideal angle for viewing the scene up close. How do you pitch the camera up and down in the viewport? A solution using the keyboard would probably be preferable.

Never mind, unless you have a better answer; I’ve figured it out. I have a weird setup; my computer does not have a mouse. I have a Wacom tablet for a mouse. I mapped right-click to one of the buttons and that allows the camera to pitch.

The controls are a little crazy using a Wacom tablet, but the important thing is that it works.