Adjust the perspective distance and rotation on X/Y/Z, and the tool renders a live 3D preview with the matching CSS.
It sets how far the viewer is from the z=0 plane; smaller values create a stronger, more dramatic 3D effect.
The property is set on a parent for shared depth; perspective() inside transform applies depth to a single element.
Very large perspective values reduce the 3D effect; lower the value or increase the rotation angles.