By garmt Thursday, 8. May 2008, 08:30:34

CSS error reported while CSS is OK

Very cool, very useful, this Dragonfly. I'll test it more thoroughly in due time. Right now, I just noticed a minor oddity: I get a CSS error message in the Console, saying:

Invalid value for property: content

Line 340:
h1 cite:after, h2 cite:after { content: none; }
---------------------------------------------^

AFAIK, there's nothing wrong with content: none;

By shoust Thursday, 8. May 2008, 09:15:46

I think the general idea is that you pass a text string to the content: property. Does an empty string work?

By fearphage Thursday, 8. May 2008, 13:56:53

I think shoust is correct. background-color: none is also a popular error. You have to find the situational value that is equivalent to none. The content property expects strings so none to it is the empty string. Background color expects colors so none to it is transparent.

By Schalandra Thursday, 8. May 2008, 16:07:17

I'm afraid, but garmt is right. content: none is defined in "CSS3 Generated and Replaced Content Module" chapter 11 "Inserting and replacing content with the 'content' property".

see: http://www.w3.org/TR/css3-content/#inserting3

By fearphage Thursday, 8. May 2008, 18:00:02

Originally posted by Schalandra:

content: none is defined in "CSS3 Generated and Replaced Content Module"

Opera currently has full support for css 2.1. It supports various parts of css3 but not all of it yet.

By Andrew Gregory Friday, 9. May 2008, 02:31:09

content:none is valid CSS 2.1 too:

http://www.w3.org/TR/CSS21/generate.html#content

By porneL Friday, 9. May 2008, 12:39:42

I think it's just bug/lack of support in Opera, not Dragonfly reporting.

By fearphage Friday, 9. May 2008, 13:30:07

Originally posted by Andrew Gregory:

content:none is valid CSS 2.1

I stand corrected partially. In CSS 2.1, content is only supported for :before and :after.

Originally posted by w3c:

This property is used with the :before and :after pseudo-elements to generate content in a document.

http://www.w3.org/TR/CSS21/generate.html#content

Post edited Friday, 9. May 2008, 17:23:56

By xErath Wednesday, 14. May 2008, 22:57:13

This bug was reported to Opera in 2005
Thanks, no need to do it again.