503223 - SeaMonkey is reading the Opera Hacks in my CSS files

Status: UNCONFIRMED

(Core :: CSS Parsing and Computation, defect)

Description

[macha_wasi]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.9.1pre) Gecko/20090627 SeaMonkey/2.0b1pre
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.9.1pre) Gecko/20090627 SeaMonkey/2.0b1pre

For example, my CSS file contains the following which is being read and applied by SeaMonkey:

/* Opera Hacks */
@media all and (min-width:0px) {
			head~body
.clsDivAd50Hdr2{line-height:15pt;}
.clsDivAd50Hdr3{line-height:15pt;}
}

FireFox is handling my CSS file correctly (i.e. it is ignoring the above hack for Opera).

Above the Opera Hacks, I have the following in my CSS file:
.clsDivAd50Hdr2{clear:left;line-height:12pt;padding-left:2px;width:223px;}
.clsDivAd50Hdr3{float:right;line-height:12pt;padding-right:2px;text-align:right;width:138px;}


Hence, because SeaMonkey is reading the Opera Hacks it is making the line-height higher than I want it to.

Reproducible: Always

Steps to Reproduce:
See Details
Actual Results:  
See Details

Expected Results:  
See Details

Comment 1

[Alex]

Firefox handles this properly (i.e. it applies the rules), it's not really a hack since it's valid CSS and Gecko 1.9.1 (Firefox 3.5, SeaMonkey, etc.) supports Media Queries.

Comment 2

[Robert Kaiser]

INVALID per comment #1 - this is valid CSS and both Firefox 3.5 and SeaMonkey 2 render them as they should per the CSS specs.

Comment 3

[macha_wasi]

I removed the Space between the "and" and the "(" of "and (min-width:0px)" and SeaMonkey and FireFox 3.5 now ignore the @media CSS.

However, I have only just noticed that the problem I am seeing with the line-height setting is that SeaMonkey/FireFox 3.5 and Opera 9.64 apply the measurement differently when you are using a Minimum Font Size of 20.

I have noticed that the number of pixels from the border of the DIV to the top of the letters in SeaMonkey/FireFox 3.5 is greater than that in Opera 9.64. And similarly, the spacing created below the letters is different.

Comment 4

[Robert Kaiser]

In any case, that's not a SeaMonkey-specific bug, but a question of CSS layout.