"class="calibre"" in the <html header line?

retiredbiker · 04-18-2021, 10:45 PM

I've recently noticed that when converting from .odt to epub, I'm getting the following at the top of each html file:

Code:

<?xml version='1.0' encoding='utf-8'?>
<html xmlns="http://www.w3.org/1999/xhtml" class="calibre">

I don't know exactly when I first noticed this; I'm now on 5.16 (Ubuntu 20.04) and it's still there.

Can someone tell me if a class code actually belongs there? Or is this a bug?
Thanks!

kovidgoyal · 04-18-2021, 11:23 PM

There will be a class there if the input document has some styling for the html tag. Its nto a bug, though the thoroughly useless epubcheck will complain about it.

retiredbiker · 04-19-2021, 12:55 AM

Ah. Thanks you! Probably yet another update to Writer added this. Time for another saved search to run on new conversions...

ballistyx · 06-19-2023, 03:33 AM

Will it ruin my book if I remove this class from all the chapters?
If the "calibre" styles are essential, then I suppose I could always use html { margin: 0; padding: 0;} and avoid the need for a class identifier in the html tag...

Quoth · 06-19-2023, 06:41 AM

Quote:

Originally Posted by ballistyx

Will it ruin my book if I remove this class from all the chapters?
If the "calibre" styles are essential, then I suppose I could always use html { margin: 0; padding: 0;} and avoid the need for a class identifier in the html tag...

Inline styles are a bad idea.
Classes is how ebooks should be built.

theducks · 06-19-2023, 11:09 AM

define Once, use many.
Class="whatever" is the USE

.whatever { <styling stuff here> } is the definition.
Make a change in ONE single place and all the uses are done

retiredbiker · 06-19-2023, 11:44 AM

Quote:

Originally Posted by ballistyx

Will it ruin my book if I remove this class from all the chapters?
If the "calibre" styles are essential, then I suppose I could always use html { margin: 0; padding: 0;} and avoid the need for a class identifier in the html tag...

No it won't hurt to remove it. That is what I've been doing ever since it started.

ballistyx · 06-20-2023, 08:19 AM

Quote:

Originally Posted by retiredbiker

No it won't hurt to remove it. That is what I've been doing ever since it started.

Thx

Just plain old snipping it out? No requirement to add those margins & padding anywhere else then?

i.e. adding

Code:

html { margin: 0; padding: 0;}

to the css

retiredbiker · 06-20-2023, 09:58 AM

Quote:

Originally Posted by ballistyx

Thx

Just plain old snipping it out? No requirement to add those margins & padding anywhere else then?

i.e. adding

Code:

html { margin: 0; padding: 0;}

to the css

I put a small margin in the <body>, that's all.

JSWolf · 06-21-2023, 09:08 AM

I put no margin in the body. That's so the margin can be set by the Reader.

theducks · 06-21-2023, 01:13 PM

Back when I was using my first reader (Astak), I set skewed side margins: 2pt, 16pt, because RMSDK put block numbers on the right that stomped upon any text there. (I also set BODY font to 1.2em to make those numbers appear small. There was a REASON. No longer really needed.

JSWolf · 06-21-2023, 02:25 PM

Quote:

Originally Posted by theducks

Back when I was using my first reader (Astak), I set skewed side margins: 2pt, 16pt, because RMSDK put block numbers on the right that stomped upon any text there. (I also set BODY font to 1.2em to make those numbers appear small. There was a REASON. No longer really needed.

Same issue when Sony first added RMSDK to the 505. I don't remember the margin used for the right side. I also remember when some commercial eBooks had a wider right margin bag in the good old days.

04-18-2021, 10:45 PM	#1
retiredbiker Evangelist Posts: 420 Karma: 2737916 Join Date: May 2013 Location: Ontario, Canada Device: Kindle KB, Oasis, Pop_Os!, Jutoh, Kobo Forma	"class="calibre"" in the <html header line? I've recently noticed that when converting from .odt to epub, I'm getting the following at the top of each html file: Code: <?xml version='1.0' encoding='utf-8'?> <html xmlns="http://www.w3.org/1999/xhtml" class="calibre"> I don't know exactly when I first noticed this; I'm now on 5.16 (Ubuntu 20.04) and it's still there. Can someone tell me if a class code actually belongs there? Or is this a bug? Thanks!

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04-18-2021, 11:23 PM	#2
kovidgoyal creator of calibre Posts: 44,539 Karma: 24495948 Join Date: Oct 2006 Location: Mumbai, India Device: Various	There will be a class there if the input document has some styling for the html tag. Its nto a bug, though the thoroughly useless epubcheck will complain about it.

04-19-2021, 12:55 AM	#3
retiredbiker Evangelist Posts: 420 Karma: 2737916 Join Date: May 2013 Location: Ontario, Canada Device: Kindle KB, Oasis, Pop_Os!, Jutoh, Kobo Forma	Ah. Thanks you! Probably yet another update to Writer added this. Time for another saved search to run on new conversions...

06-19-2023, 03:33 AM	#4
ballistyx Junior Member Posts: 6 Karma: 10 Join Date: Jun 2023 Device: Kindle android app	Will it ruin my book if I remove this class from all the chapters? If the "calibre" styles are essential, then I suppose I could always use html { margin: 0; padding: 0;} and avoid the need for a class identifier in the html tag...

06-19-2023, 11:09 AM	#6
theducks Well trained by Cats Posts: 30,443 Karma: 58055868 Join Date: Aug 2009 Location: The Central Coast of California Device: Kobo Libra2,Kobo Aura2v1, K4NT(Fixed: New Bat.), Galaxy Tab A	define Once, use many. Class="whatever" is the USE .whatever { <styling stuff here> } is the definition. Make a change in ONE single place and all the uses are done

06-21-2023, 09:08 AM	#10
JSWolf Resident Curmudgeon Posts: 76,402 Karma: 136466962 Join Date: Nov 2006 Location: Roslindale, Massachusetts Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3	I put no margin in the body. That's so the margin can be set by the Reader.

06-21-2023, 01:13 PM	#11
theducks Well trained by Cats Posts: 30,443 Karma: 58055868 Join Date: Aug 2009 Location: The Central Coast of California Device: Kobo Libra2,Kobo Aura2v1, K4NT(Fixed: New Bat.), Galaxy Tab A	Back when I was using my first reader (Astak), I set skewed side margins: 2pt, 16pt, because RMSDK put block numbers on the right that stomped upon any text there. (I also set BODY font to 1.2em to make those numbers appear small. There was a REASON. No longer really needed.

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