Re: How much is one em (image size unit)?

[Eli Zaretskii]

> From: Akib Azmain Turja <akib@disroot.org>
> Cc: Manuel Giraud <manuel@ledu-giraud.fr>
> Date: Fri, 31 Mar 2023 22:32:49 +0600
> 
> > Akib Azmain Turja <akib@disroot.org> writes:
> >
> >> I'm trying to show an image such that it has same height as the text and
> >> resizes relatively with text scale.  I've achieved this with the 'em'
> >> unit as described in (elisp)Image Descriptors.  But 1 em seems to be
> >> pretty smaller than the font size.  How to figure out correct value in
> >> em unit such that image and the text has correct height?
> >
> > Hi,
> >
> > FWIW, your example works for me and scales accordingly when I zoom.
> 
> But 1 em is pretty smaller than the default font size.  I want to make
> the image height and the text height same.

Maybe this page will help you:

  https://learn.microsoft.com/en-us/typography/opentype/spec/ttch01