Stylesheet language proposed by Netscape
JavaScript Style Sheets
(
JSSS
) was a
stylesheet language
technology proposed by
Netscape Communications
in 1996 to provide facilities for defining the presentation of
webpages
.
[1]
It was an alternative to the
Cascading Style Sheets
(CSS) technology.
[1]
Although Netscape submitted it to the
World Wide Web Consortium
(W3C), the technology was never accepted as a formal standard and it never gained acceptance in the
web browser
market. Only
Netscape Communicator
4 implemented JSSS, with rival
Internet Explorer
choosing not to implement the technology. Soon after Netscape Communicator's release in 1997, Netscape stopped promoting JSSS, instead focusing on the rival CSS standard, which was also supported by Internet Explorer and had a much wider industry acceptance.
The follow-up to Netscape Communicator,
Netscape 6
(released in 2000), dropped support for JSSS. It now remains little more than a historical footnote, with
web developers
generally unaware of its previous existence. The proposal did not become a W3C standard.
Syntax
[
edit
]
Using
JavaScript
code as a stylesheet, JSSS styles individual element by modifying properties of a
document.tags
object. For example, the CSS:
h1
{
font-size
:
20
pt
;
}
is equivalent to the JSSS:
document
.
tags
.
H1
.
fontSize
=
"20pt"
;
JSSS element names are case sensitive.
JSSS lacks the various CSS selector features, supporting only simple tag name, class and id selectors. On the other hand, since it is written using a complete
programming language
, stylesheets can include highly complex dynamic calculations and conditional processing. (In practice, however, this can be achieved using
JavaScript
to modify the stylesheets applicable to the document at runtime.)
Because of this JSSS was often used in the creation of
dynamic web pages
.
Example
[
edit
]
The following example shows part of the source code of an HTML document:
<
style
type
=
"text/javascript"
>
tags
.
H1
.
color
=
"red"
;
tags
.
p
.
fontSize
=
"20pt"
;
with
(
tags
.
H3
)
{
color
=
"green"
;
}
with
(
tags
.
H2
)
{
color
=
"red"
;
fontSize
=
"16pt"
;
marginTop
=
"4cm"
;
}
</
style
>
Similar to
Cascading Style Sheets
, JSSS could be used in a
<style>
tag. This example shows two different methods to select tags.
Browser support
[
edit
]
Javascript Style Sheets were only supported by Netscape 4.x (4.0?4.8) but no later versions. No other
web browser
has ever integrated JSSS.
References
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]
External links
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See also
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Standard
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Preprocessor
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Products and
standards
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Organizations
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Closed groups
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Software
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