Structure of the spin and how its internal parts are composed. These are the spin's semantic parts, so they are also what the classNames and styles objects accept. The older tip and mask keys still work but are deprecated. From the left: a spin on its own, a spin over content with a description, and a fullscreen spin.
Name
Description
1
root
The spin element. Over wrapped content it is the layer that dims it. fullscreen stretches it over the page.
2
section
The block that holds the indicator and the description. It carries the color the dots take.
3
indicator
The animated mark, four dots by default. indicator replaces it, and size scales it.
4
description
The text under the indicator, from description.
5
container
The wrapper around the content a spin is placed over. It renders only when the spin has children.