Browse Prior Art Database

The text/css Media Type (RFC2318)

IP.com Disclosure Number: IPCOM000002884D
Original Publication Date: 1998-Mar-01
Included in the Prior Art Database: 2019-Feb-15
Document File: 5 page(s) / 6K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

H. Lie: AUTHOR [+2]

Related Documents

10.17487/RFC2318: DOI

Abstract

This memo provides information about the text/css Media Type. This memo provides information for the Internet community. It does not specify an Internet standard of any kind.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 47% of the total text.

Network Working Group H. Lie Request for Comments: 2318 B. Bos Category: Informational C. Lilley W3C March 1998

The text/css Media Type

Status of this Memo

This memo provides information for the Internet community. It does not specify an Internet standard of any kind. Distribution of this memo is unlimited.

Copyright Notice

Copyright (C) The Internet Society (1998). All Rights Reserved.

Abstract

Cascading Style Sheets (CSS) is a style sheet language for the World Wide Web. CSS style sheets have been in use since October 1995 using the Media Type text/css without registration; this memo seeks to regularize that position.

1. Introduction

The World Wide Web Consortium has issued a Recommendation [1], which defines Cascading Style Sheets, level 1. This memo provides information about the text/css Media Type.

2. Cascading Style Sheets

Cascading Style Sheets (CSS) is a style sheet language for the World Wide Web. It describes the presentation (e.g. fonts, colors and spacing) of structured documents. CSS is human readable and writable, and expresses style in common desktop publishing terminology.

CSS style sheets have been in use since October 1995 using the Media Type text/css without registration; this memo seeks to regularize that position.

A CSS style sheet can be either:

Lie, et. al. Informational [Page 1]

RFC 2318 text/css Media Type March 1998

(1) external - the style sheet is linked to a document through a URI and exists as a separate object on the Web. The media type text/css is used when fetching the object, for example in the Content-Type and Accept header fields of HTTP [2].

(2) internal - the style sheet is contained within the document. A typical scenario is an HTML [3] document that contains a style sheet within the STYLE element. Due to this close relationship, HTML and CSS share the same top-level name ("text").

4. Registration Information

To: ietf-types@iana.org Subject: Registration of MIME media type text/css

MIME media type name: text

MIME subtype name: css

Required parameters: none

Optional parameters: charset

The syntax of CSS is expressed in US-ASCII, but a CSS file can contain strings which may use any Unicode character. Any charset that is a superset of US-ASCII may be used; US-ASCII, iso-8859-X and utf-8 are recommended.

Encoding considerations:

For use with transports that are not 8-bit clean, quoted- printable encoding is recommended since the majority of characters will be CSS syntax and thus US-ASCII

Security considerations:

Applying a style sheet to a document may hide information otherwise visible. For example, a very small font size may be specified, or the display of certain document elements may be turned off.

CSS style sheets consist of declarative property/value pairs assigned to element selectors. They contain no executable code.

As with HTML documents, CSS style sheets may contain links to other media (images, sounds, fonts, other style sheets) and those links are typically followed automatically by software,...

Processing...
Loading...