Question

Which of the following are different origins of style sheets?

(a) author

(b) user

(c) user agent

(d) all of the mentioned

I had been asked this question in exam.

This intriguing question originated from Inheritance and Cascade topic in chapter CSS Properties, Elements, Functions & Tables of CSS

Answer 1

Correct answer is (d) all of the mentioned

Easiest explanation: Author: The author specifies style sheets for a source document according to the conventions of the document language. For instance, in HTML, style sheets may be included in the document or linked externally.

User: The user may be able to specify style information for a particular document. For example, the user may specify a file that contains a style sheet or the user agent may provide an interface that generates a user style sheet (or behaves as if it did).

User agent: Conforming user agents must apply a default style sheet. A user agent’s default style sheet should present the elements of the document language in ways that satisfy general presentation expectations for the document language