CSS validation error

kamanza · 12-12-2012, 02:19 AM

Using the CSS validation tool in Sigil 0.6.2, Calibre-generated page-styles.css doesn't pass validation.
I was perplexed until the helpful folks on Calibre forum explained to me that epub2 & epub3 do not support CSS3 but CSS2&CSS2.1 respectively.
So, as Sigil is the program for editing epub, it would be logical for it to send the ,css files to CSS2 & CSS2.1 validators and not to CSS3 as it does now.
Just a suggestion…

Jellby · 12-12-2012, 11:53 AM

Note that valid CSS3 files are probably valid CSS2 too. Even if you use properties not included in CSS2, that doesn't make the file invalid, but systems that only support CSS2 won't support CSS3 properties...

And then again, the ePub spec does not support all CSS2 properties either.

meme · 12-14-2012, 04:45 PM

Next version will use the CSS 2.1 profile. So anyone using any CSS 3 type features will get an error.

Agama · 12-17-2012, 04:40 PM

Perhaps there could be a Sigil user preference to select which validator to use?

12-12-2012, 02:19 AM	#1
kamanza Zealot Posts: 115 Karma: 10 Join Date: Jan 2011 Device: none	CSS validation error Using the CSS validation tool in Sigil 0.6.2, Calibre-generated page-styles.css doesn't pass validation. I was perplexed until the helpful folks on Calibre forum explained to me that epub2 & epub3 do not support CSS3 but CSS2&CSS2.1 respectively. So, as Sigil is the program for editing epub, it would be logical for it to send the ,css files to CSS2 & CSS2.1 validators and not to CSS3 as it does now. Just a suggestion…

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12-12-2012, 11:53 AM	#2
Jellby frumious Bandersnatch Posts: 7,543 Karma: 19001583 Join Date: Jan 2008 Location: Spaniard in Sweden Device: Cybook Orizon, Kobo Aura	Note that valid CSS3 files are probably valid CSS2 too. Even if you use properties not included in CSS2, that doesn't make the file invalid, but systems that only support CSS2 won't support CSS3 properties... And then again, the ePub spec does not support all CSS2 properties either.

12-14-2012, 04:45 PM	#3
meme Sigil developer Posts: 1,274 Karma: 1101600 Join Date: Jan 2011 Location: UK Device: Kindle PW, K4 NT, K3, Kobo Touch	Next version will use the CSS 2.1 profile. So anyone using any CSS 3 type features will get an error.

12-17-2012, 04:40 PM	#4
Agama Guru Posts: 776 Karma: 2751519 Join Date: Jul 2010 Location: UK Device: PW2, Nexus7	Perhaps there could be a Sigil user preference to select which validator to use?

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