How to apply fixed-width fonts

[EnergyLens]

I'm a neophyte with CSS and fonts so please forgive...

Trying to get guitar tabs to show up properly in both the viewer and my Sony Reader. The text in html <pre> shows up perfectly in a browser and caliber adds a style for <pre> that is monospace, but in the viewer or the reader the guitar tabs are not aligned, which I take to mean that an inappropriate font directive has been applied...

I've tried using the hammer icon in the viewer to change the monospace font, but nothing I've tried results in a fixed-width font

Here is how things end up looking:

G C
e|--------3--------------------3-----------3--------|
B|--------------0-----0--1-----------1--------------|
G|-----0-----0-----2--------------0-----------0-----|
D|--------------------------------------0--------0--|
A|--------------------------3-----------------------|
E|--3-----------------------------------------------|

Any suggestions?

[kovidgoyal]

Try explicitly setting the font

<pre style="font-family: monospace">
</pre>

[EnergyLens]

I tried that in the source html file and saw no difference, even in the stylesheet that ebook-convert generated. The class for the <pre> was unchanged.

I then unzipped the .epub file and hand edited the article_0/index.html file and replaced:

<pre class="calibre7">

with

<pre style="font-family: monospace">

and then re-zipped. It definitely changed the font, but didn't solve the alignment problem, so that alone won't fix it.

Really appreciate you response, as ever.

[kovidgoyal]

Try style="whitespacere"

[DoctorOhh]

Originally Posted by kovidgoyal

Try style="whitespacere"

style="whitespace:pre"

[EnergyLens]

This worked for the Calibre Viewere, but not for the Sony Reader:

    def preprocess_html(self, soup):
        if soup.pre:
            soup.pre["style"] = 'font-family: courier'
        return soup

I think I just need to learn which proportional/fixed-width fonts are actually supported by the reader, or how to include a font in the .epub that will work on the reader