{{ target: partial-label-rotate-tangential }}
#${prefix} rotate(string|number) = ${defaultRotate}
{{ if: ${version} }} {{ use: partial-version( version = ${version} ) }} {{ /if }}
If it is number type, then is stands for rotation, from -90 degrees to 90 degrees, and positive values stand for counterclockwise.
Besides, it can be string 'radial', standing for radial rotation; or 'tangential', standing for tangential rotation.
If no rotation is wanted, it can be set to 0.