View source for Style sheet (web design)

In [[web design]], a '''style sheet''' provides style rules for a [[web page]].

== Separation of concerns ==

[[Separation of concerns]] is a design principle which requires certain entities to take certain responsibilities, and other entities to take other responsibilities.

In web design, separations of concerns includes the separation of:

* Style sheet provide design, presentation, layout, color
* Markup tags ([[HTML]] or [[XHTML]]) provides semantic content and structure

This design approach is identified as a "separation" because it largely supersedes the antecedent methodology in which a page's markup (HTML) defined both style and structure.  (For example, the <code>font</code> element.)

== External style sheet ==

Style are typically defined in an external style sheet file using a style sheet language such as CSS or XSLT.

* A <code>style</code> element in a web page is sometimes referred to as a style sheet, although it is not external

== See also ==

* [[Cascading Style Sheets]]
* [[HTML]]
* [[Web design]]
* [[Web page]]
* [[Web page layout]]

==  External links ==

* [[]] @ Wikipedia