Re: Pixels and Ems

  • From: "Jackie McBride" <abletec@xxxxxxxxx>
  • To: programmingblind@xxxxxxxxxxxxx
  • Date: Tue, 22 Apr 2008 12:50:13 -0700

Jaffer:

Here's the thing. EM's are related to the base font, so if u said 2m &
the size was 12, then the font would be 24. If the size was 18
originally, it'd be 36--u get the picture.

The reason why it's preferable to specify the size in Em's as opposed
to pixels is that pixels are absolute. EM's, obviously, are relative.
So, if u specify x pixels, that's not negotiable, & it can make a
difference if some1's viewing your page w/a 1024 resolution as opposed
to a cell phone.

Hope that clarifies?

On 4/21/08, Octavian Rasnita <orasnita@xxxxxxxxx> wrote:
> As far as I know the ems are used only for specifying the size of the text,
> and 1em is equal to the base font size of the page.
>
> Octavian
>
> ----- Original Message -----
> From: <jaffar@xxxxxxxxxxxxx>
> To: <programmingblind@xxxxxxxxxxxxx>
> Sent: Tuesday, April 22, 2008 6:49 AM
> Subject: Pixels and Ems
>
>
> Hi All.  I need some answers concerning the difference between pixels and
> ems.  Is the preference for modern browsers to measure say, font-size in ems
> rather than pixels a universal rule?  What would  say, 2ems be equivalent
> too in pixels?  Are ems just used in font or text sizes or can i use it to
> style other elements such as margins or borders?  Better still, if i could
> be pointed to a good tutorial on this, I'll be very grateful.  Cheers!
>
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>


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Jackie McBride
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