[whatwg] Bad CSS on the multipage version

Křištof Želechovski giecrilj at stegny.2a.pl
Wed Jun 4 03:39:31 PDT 2008

Well, whatever the EM stands for, 
the rule hides the headings from viewing in Internet Explorer, 
whereas the rule with EX makes them reappear.

-----Original Message-----
From: whatwg-bounces at lists.whatwg.org
[mailto:whatwg-bounces at lists.whatwg.org] On Behalf Of Anne van Kesteren
Sent: Wednesday, June 04, 2008 12:32 PM
To: Křištof Želechovski; whatwg at whatwg.org
Subject: Re: [whatwg] Bad CSS on the multipage version

On Wed, 04 Jun 2008 12:25:28 +0200, Křištof Želechovski  
<giecrilj at stegny.2a.pl> wrote:
> Regarding your page at the URL
> #the-embed>:
> The following declaration is bad and wrong:
> Is: "margin-top: -2.5em"
> Should be: margin-top: -2.5ex"
> Wrong: A horizontal unit is applied to a vertical measure
> Bad:
> Element headings (level 4) are invisible
> (obscured underneath the following content).
> Please fix ASAP.

I don't see that problem. Also, em is just a shorthand for the font-size  
of the current element (or parent element if you specify it on font-size),  
it's different from the traditional em unit in that respect.

Anne van Kesteren

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