Validation: attribute 'start' is not declared for element 'ol'

WS64 · 10-05-2011, 05:31 AM

I get the above mentioned validation message in Sigil, why is start not allowed here?
The corresponding line is
<ol start="14">
<li>something

It's valid html and does exactly what it should, output:
14 something

If I do it the other way
<ol>
<li value="14">something
the result is also correct, but the validation analog shows "value not allowed for li"

Why are those wrong and how do I do it right?

user_none · 10-05-2011, 06:52 AM

start is an xhtml 1.0 transitional attribute. It is not supported by xhtml 1.1.

Jellby · 10-05-2011, 06:52 AM

Because those are not valid attributes in XHTML, and ePub uses XHTML, not HTML.

I believe there are equivalent properties in CSS, which you can use combined with XHTML, but they are not officially supported in ePub, so the bottom line is, I'm afraid: do not use numbered lists in ePub.

WS64 · 10-05-2011, 11:31 AM

Thanks.
I think I'll use it anyway since it works everywhere I have tested so far and just ignore the validation error...

Toxaris · 10-06-2011, 03:15 AM

You can, but a lot of readers will ignore it.

10-05-2011, 05:31 AM	#1
WS64 ♫ Posts: 661 Karma: 506380 Join Date: Aug 2010 Location: Germany Device: Kobo Aura / PB Lux 2 / Bookeen Frontlight / Kobo Mini / Nook Color	Validation: attribute 'start' is not declared for element 'ol' I get the above mentioned validation message in Sigil, why is start not allowed here? The corresponding line is <ol start="14"> <li>something It's valid html and does exactly what it should, output: 14 something If I do it the other way <ol> <li value="14">something the result is also correct, but the validation analog shows "value not allowed for li" Why are those wrong and how do I do it right?

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10-05-2011, 06:52 AM	#2
user_none Sigil & calibre developer Posts: 2,487 Karma: 1063785 Join Date: Jan 2009 Location: Florida, USA Device: Nook STR	start is an xhtml 1.0 transitional attribute. It is not supported by xhtml 1.1.

10-05-2011, 06:52 AM	#3
Jellby frumious Bandersnatch Posts: 7,543 Karma: 19001583 Join Date: Jan 2008 Location: Spaniard in Sweden Device: Cybook Orizon, Kobo Aura	Because those are not valid attributes in XHTML, and ePub uses XHTML, not HTML. I believe there are equivalent properties in CSS, which you can use combined with XHTML, but they are not officially supported in ePub, so the bottom line is, I'm afraid: do not use numbered lists in ePub.

10-05-2011, 11:31 AM	#4
WS64 ♫ Posts: 661 Karma: 506380 Join Date: Aug 2010 Location: Germany Device: Kobo Aura / PB Lux 2 / Bookeen Frontlight / Kobo Mini / Nook Color	Thanks. I think I'll use it anyway since it works everywhere I have tested so far and just ignore the validation error...

10-06-2011, 03:15 AM	#5
Toxaris Wizard Posts: 4,520 Karma: 121692313 Join Date: Oct 2009 Location: Heemskerk, NL Device: PRS-T1, Kobo Touch, Kobo Aura	You can, but a lot of readers will ignore it.

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