in which offset's property is used?

Answer 1

Sounds like a quizz question :P

Offset is an experimental svg css shortcut property, to animate an svg element on a path...

Else in html css, you have the 'outline-offset' property, used ( rarely ^^ ) to fine tune position of underlining...

There is also a JQuery method called 'offset()', but for handling positionned elements ( defines properties left, right, top, bottom, associated with 'position' values other than 'static' ).