365724 - style sheets with div ID set as single number do not qork

Status: RESOLVED INVALID

(Core :: CSS Parsing and Computation, defect)

Description

[george]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.1) Gecko/20061204 Firefox/2.0.0.1
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.1) Gecko/20061204 Firefox/2.0.0.1

If style sheet div ids are single numbers, they will not behave properly.  The buggy.html URL included demonstrates this.  buggy.html has two style sheets with IDs 1 and 2.  1 is set to visible and absolute position, 2 is hidden and also set to absolute position.  It seems that neither of these divs are showing these properties; both are visible and have no position.

The URL http://web.njit.edu/~gc28/test/normal.html is essentially the same code as buggy.html except I have renamed the divs from 1 and 2 to a1 and a2, and the page works fine.

Reproducible: Always

Steps to Reproduce:
1. Make a page with style sheets and name the style sheets with single number names (e.g. <div id="1">).
2. Assign properties to each sheet such as position: absolute etc.
3. Open the page in a browser. 
Actual Results:  
witness that the attributes assigned to the style sheets are not realized in the browser

Expected Results:  
the style sheets should display the attributes assigned to them.

Look here: http://web.njit.edu/~gc28/test/buggy.html

Now look here: http://web.njit.edu/~gc28/test/normal.html

Comment 1

[Régis Caspar]

I don't think IDs can begin with a digit. According to http://www.w3.org/TR/REC-xml/#NT-Name, only a letter, an underscore or ':' are allowed.

Refs :
- http://www.w3.org/TR/REC-xml/#sec-attribute-types
- http://www.w3.org/TR/REC-CSS2/selector.html

 -> Core/CSS
 -> INVALID ?

Comment 2

[philippe (part-time)]

Invalid.
In CSS, an ID cannot start with a digit:
http://www.w3.org/TR/CSS21/syndata.html#q6

See also html 4.01:
http://www.w3.org/TR/html401/types.html
'ID and NAME tokens must begin with a letter ([A-Za-z]) and may be followed by any number of letters, digits ([0-9]), hyphens ("-"), underscores ("_"), colons (":"), and periods (".").'