245781 - page depends on ID selectors beginning with numbers

Status: RESOLVED INVALID

(Tech Evangelism Graveyard :: Czech, defect)

Description

[Michal Ludvig]

User-Agent:       Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.8a2) Gecko/20040606
Build Identifier: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.8a2) Gecko/20040606

When an IMG tag has only a 'width' specified, the 'height' is inherited from it
instead of using the value read from the image itself. 
E.g. GIF image with size 1x1 px. With <img src=... width=10> I expect the image
be rendered with 10 px width and 1 px height. BUT mozilla renders 10x10 instead.
Similar problem when only height is specified.

This is observed since cca ver 1.8a1 (IIRC 1.7 branch was fine).

Reproducible: Always
Steps to Reproduce:
1. See details or look at http://www.logix.cz/michal/dl/1x1.html

Actual Results:  
Wrong height of the image: size 10x10 px.

Expected Results:  
Image sized 10x1 px.

Comment 1

[Christian :Biesinger (don't email me, ping me on IRC)]

ok... http://www.w3.org/TR/html4/struct/objects.html#visual doesn't really say
anything about this case, and this behaviour is implemented in exactly the same
way across all current browsers. considering that, it seems like a bad idea to
change this.

this sounds like wontfix to me.

Comment 2

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

HTML isn't clear, and CSS is:
http://www.w3.org/TR/2004/CR-CSS21-20040225/visudet.html .

->invalid, per CSS

Comment 3

[Aaron Kaluszka]

v

Comment 4

[Michal Ludvig]

Sorry, I have apparently extracted a bad testcase. The real example is here:

http://www.toplist.cz/stat.asp?menu=4096&kdy=dnes&n=64223

Try this URL in mozilla 1.8 and compare with mozilla 1.6 or konqueror. 

Comment 5

[Adam Hauner]

NN 4.8 renders images also as squares. Opera 7.51 and MSIE 6.0 render images as
author suppose, not as squares.

Pavel: Isn't this issue also for czech TechEvan?

Comment 6

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

The description in comment 0 is completely incorrect in explaining what the
problem is.  The real problem is the following:

The page in question specifies the height for the image using HTML attributes
and the 'width' using a CSS style rule.  (It has nothing to do with unspecified
width.)  The CSS style rule is on line 78 of http://www.toplist.cz/style.css ,
and looks like this:

.g .graph .c#4 IMG { width: 4px; }

CSS2.1 was recently clarified to say that ID selectors must be identifiers. 
This means that #4 is an invalid selector and the style rule must be ignored at
parse time.  Mozilla fixed this in bug 239079, so this bug report is invalid.

Comment 7

[Adam Hauner]

Bug MOVED to our Bugzilla.
http://bugzilla.czilla.cz/show_bug.cgi?id=379

David, thanx for your explanation.

Comment 8

[Adam Hauner]

Toplist has fixed selector and page renders okay.