Removing space above and below 2D map

1. A concise explanation of the problem you’re experiencing.

Hi I am trying to see if there is a way to limit the Cesium map canvas to the only the map in 2D - remove the blank space above and below.

2. A minimal code example. If you’ve found a bug, this helps us reproduce and repair it.

3. Context. Why do you need to do this? We might know a better way to accomplish your goal.

Because when in 2D it is unnecessary for the user to zoom out that far and see anything around the map

4. The Cesium version you’re using, your operating system and browser.

Cesium 1.51.0

You could try to limit the camera’s distance by listening in on the camera move event and clamping its position, or overriding the camera controls like in this example: http://localhost:8080/Apps/Sandcastle/index.html?src=Camera%20Tutorial.html&label=All