On Oct 25, 2010, at 3:13 PM, Christian Moe wrote:
On 10/25/10 11:08 AM, Carsten Dominik wrote:
On Oct 25, 2010, at 10:51 AM, Christian Moe wrote:
On 10/25/10 6:36 AM, Baoqiu Cui wrote:
I am wondering if there
is any special reason to use "class" instead of "align". If not,
can we
change the elisp code to use "align"?
I believe the "align" attribute is slated for obsoletion in HTML5,
on the grounds that it's better handled by CSS.
http://www.w3.org/TR/html5/obsolete.html
It's a reason to go with "class" instead. Not a compelling one,
perhaps.
My only strong opinion on this is that I absolutely agree with the
choice not to set the "style" attribute locally on each table cell.
Hmm, butwe do now set the class in each cell. Is that any better?
- Carsten
It's a subtle difference, and every way works, so I don't want to
waste more of your time.
#+begin_rant
But yes, I think it /is/ better, for the same reason Sebastian
requested it: Setting class is the preferred way to make all cells
of that class custom-styleable by changing a single line in the
stylesheet.
As I pointed out below, though, it's not the only way. CSS lets you
do the same, nearly as easily, if "align" is used instead of "class"
as Baoqiu Cui suggested; "class" is more future-proof (HTML5),
"align" more compact (the default is already defined).
(Heck, come to think of it, Sebastian could have monospaced the left-
aligned column in his example even when Org set "style" on each
cell, using a selector like:
: td[style="text-align: left;"] { font-family: monospace; }
-- but that, I think, would be perverse.)
Over-use of the style attribute to set styles locally works against
the purpose of CSS. The local style attribute should be used for
exceptions; general rules should be handled at a higher level of the
cascade.
Having to set /anything/ on each cell just to align a column is not
optimal either, but since some browsers don't honor colgroups, it's
the most robust way.
#+end_rant
Christian
But Sebastian Rose's request that prompted it, /could/ equally well
be addressed with the "align" attribute:
How about this (line-wrapped for readability):
<tr>
<td class="right">1</td>
<td class="left">bar</td>
<td class="left">text</td>
<tr>
instead of
<tr>
<td style="text-align:right">1</td>
<td style="text-align:left">bar</td>
<td style="text-align:left">text</td>
<tr>
??
Combined with the ways to add IDs and classes to tables, we could
then style the
columns better.
I would like to set this for right aligned <td> tags as default:
td.right { font-family:monospace;text-align:right; }
Using the "align" attribute as follows,
<tr>
<td align="right">1</td>
<td align="left">bar</td>
<td align="left">text</td>
<tr>
Sebastian could achieve the same with CSS like
td[align="right"] { font-family: monospace;}
In the same way one could even use CSS to override the alignment
specified by the "align" attribute, if for whatever reason this
seemed like a good idea...
One slight advantage of the "align" attribute over "class" is that
it doesn't require the default style to contain the extra verbiage
Carsten mentioned:
I have now in the default style:
td, th { vertical-align: top; }
th.right { text-align:right; }
th.left { text-align:left; }
th.center { text-align:center; }
td.right { text-align:right; }
td.left { text-align:left; }
td.center { text-align:center; }
Is there a way to write this more compactly?
Yours,
Christian
- Carsten
Actually, I have one more question:
The exporter does now (in addition to setting classes for individual
fields)
<colgroup><col align="left" /><col align="right" /><col
align="center" />
Should this be classes instead of align attributes as well?
Thanks!
- Carsten
- Carsten
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