Docx to EPUB: W3C error - border currentColor is not a Color ...

etilley · 09-18-2021, 07:26 PM

Hi,
Has anyone else seen this W3C error on Epub conversions from docx files?

border currentColor is not a Color ...

If yes, how to correct this problem?

etilley · 09-18-2021, 07:34 PM

Here are the CSS files for tables ...

.table_ {
border-collapse: collapse;
border-spacing: 2px;
display: table;
margin-bottom: 0;
margin-left: 0;
margin-top: 0;
text-indent: 0;
padding: 0;
border: currentColor none 1pt
}

Karellen · 09-18-2021, 08:11 PM

Quote:

Originally Posted by etilley

Here are the CSS files for tables ...

border: currentColor none 1pt
}

I think you have incorrect syntax for border.

Have a read here and you might be able to find the effect you are after...

https://www.w3schools.com/css/css_border_shorthand.asp

etilley · 09-18-2021, 08:37 PM

The syntax is auto-generated by Calibre as part of the conversion.

I notice that if I search and replace "currentColor" with "black" on the stylesheet.css file that it passes a W3C validation scan.

This is a fix I guess, but it also seems like it might be a Calibre bug report too?

Karellen · 09-18-2021, 08:54 PM

Quote:

Originally Posted by etilley

This is a fix I guess, but it also seems like it might be a Calibre bug report too?

ah, right. I didn't realise it was auto-generated. Sounds like a bug. I'll let the calibre gurus respond further

theducks · 09-18-2021, 09:23 PM

Preferences: OUTPUT options: EPUB (on sidebar): EPUB Version
If you have previously converted a book, there is a similar area on the start conversion dialog.
CALIBRE remembers previously used settings PER BOOK (so it no longer uses Preferences for those.)

kovidgoyal · 09-18-2021, 11:27 PM

The W3C is no longer relevant to html specs. The browser makers all decided to ignore it. And currentColor is most definitely a valid value for color: https://developer.mozilla.org/en-US/...tcolor_keyword

Karellen · 09-18-2021, 11:41 PM

Quote:

Originally Posted by kovidgoyal

The W3C is no longer relevant to html specs.

Oh right. I had no idea. A shame as that site is how I taught myself css and html and what I use for reference.

What site do you use as a reference for CSS and HTML properties? I note that mozilla site does not have a comprehensive list of available properties/tags that can be used.

kovidgoyal · 09-19-2021, 12:12 AM

I use the whatwg documents mostly, such as https://html.spec.whatwg.org

Karellen · 09-19-2021, 12:37 AM

Great. Thank you

etilley · 09-19-2021, 08:31 AM

All true as you say, but the W3C check is a requirement of Draft2Print - that flags the errors and refuses to forward the epubs etc on for publishing at Apple, Barnes and Nobles, and so on. currentColor is legal, although I understand that color must be set initially so it can use the cascading color settings.

kovidgoyal · 09-19-2021, 09:08 AM

I'm afraid calibre is not in the business of satisfying incorrect error checks in various pre-print tools. Simply run a search and replace, or setup a rule to do it automatically during conversion. In the Lokk & Feel->Transform styles section of the conversion dialog.

09-18-2021, 07:26 PM	#1
etilley Junior Member Posts: 4 Karma: 10 Join Date: Sep 2021 Device: kindle	Docx to EPUB: W3C error - border currentColor is not a Color ... Hi, Has anyone else seen this W3C error on Epub conversions from docx files? border currentColor is not a Color ... If yes, how to correct this problem?

09-18-2021, 07:34 PM	#2
etilley Junior Member Posts: 4 Karma: 10 Join Date: Sep 2021 Device: kindle	More info on CSS file contents Here are the CSS files for tables ... .table_ { border-collapse: collapse; border-spacing: 2px; display: table; margin-bottom: 0; margin-left: 0; margin-top: 0; text-indent: 0; padding: 0; border: currentColor none 1pt }

09-19-2021, 08:31 AM	#11
etilley Junior Member Posts: 4 Karma: 10 Join Date: Sep 2021 Device: kindle	All true as you say, but the W3C check is a requirement of Draft2Print - that flags the errors and refuses to forward the epubs etc on for publishing at Apple, Barnes and Nobles, and so on. currentColor is legal, although I understand that color must be set initially so it can use the cascading color settings. Last edited by etilley; 09-19-2021 at 08:33 AM.

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09-18-2021, 08:37 PM	#4
etilley Junior Member Posts: 4 Karma: 10 Join Date: Sep 2021 Device: kindle	The syntax is auto-generated by Calibre as part of the conversion. I notice that if I search and replace "currentColor" with "black" on the stylesheet.css file that it passes a W3C validation scan. This is a fix I guess, but it also seems like it might be a Calibre bug report too?

09-18-2021, 09:23 PM	#6
theducks Well trained by Cats Posts: 31,267 Karma: 61916422 Join Date: Aug 2009 Location: The Central Coast of California Device: Kobo Libra2,Kobo Aura2v1, K4NT(Fixed: New Bat.), Galaxy Tab A	Preferences: OUTPUT options: EPUB (on sidebar): EPUB Version If you have previously converted a book, there is a similar area on the start conversion dialog. CALIBRE remembers previously used settings PER BOOK (so it no longer uses Preferences for those.)

09-18-2021, 11:27 PM	#7
kovidgoyal creator of calibre Posts: 45,609 Karma: 28549044 Join Date: Oct 2006 Location: Mumbai, India Device: Various	The W3C is no longer relevant to html specs. The browser makers all decided to ignore it. And currentColor is most definitely a valid value for color: https://developer.mozilla.org/en-US/...tcolor_keyword

09-19-2021, 12:12 AM	#9
kovidgoyal creator of calibre Posts: 45,609 Karma: 28549044 Join Date: Oct 2006 Location: Mumbai, India Device: Various	I use the whatwg documents mostly, such as https://html.spec.whatwg.org

09-19-2021, 12:37 AM	#10
Karellen Wizard Posts: 1,688 Karma: 9500498 Join Date: Sep 2021 Location: Australia Device: Kobo Libra 2	Great. Thank you

09-19-2021, 09:08 AM	#12
kovidgoyal creator of calibre Posts: 45,609 Karma: 28549044 Join Date: Oct 2006 Location: Mumbai, India Device: Various	I'm afraid calibre is not in the business of satisfying incorrect error checks in various pre-print tools. Simply run a search and replace, or setup a rule to do it automatically during conversion. In the Lokk & Feel->Transform styles section of the conversion dialog.