Hi,
I was wondering if ::before and ::after pseudo-elements can apply to
elements styled with the display: table-* properties. None of my tests
worked in either Firefox or Opera, yet I could not find anywhere in
either the CSS2.1, CSS3 Selectors or CSS3 Generated and Replaced Content
Module specs that defines which elements these pseudo-elements actually
apply to.
Specifically, I was wondering if something like this were possible:
table>:not(col) :not(colgroup): first-child::before {
/* Should work with thead, tfoot, tbody or tr (whichever comes first
* in the table), if not preceded by a col or colgroup element.
*/
display: table-column;
background: green;
}
--
Lachlan Hunt http://lachy.id.au/ http://GetFirefox.com/ Rediscover the Web http://GetThunderbird.com/ Reclaim your Inbox 4 5632
Lachlan Hunt: I was wondering if ::before and ::after pseudo-elements can apply to elements styled with the display: table-* properties.
They should, AFAICT.
table>:not(col) :not(colgroup): first-child::before { /* Should work with thead, tfoot, tbody or tr (whichever comes first * in the table), if not preceded by a col or colgroup element. */
Note that the 'tr' case will only ever occur in XHTML and HTML 3.2, but
never in HTML4. Do not forget 'caption' (also in 3.2).
display: table-column;
Advanced stuff like 'display' or 'position' has always been problematic
with generated context. File bug-reports, if you are sure you made no
mistake in your test-case.
Christoph Päper: Lachlan Hunt: table>:not(col) :not(colgroup): first-child::before { display: table-column;
File bug-reports, if you are sure you made no mistake in your test-case.
I suppose not everyone here is reading www-style, too. Those of you
should know that it in fact should *not* work, because '::before' is not
actually put before the box, but before all of its child boxes. (How
could I forget that?) I'm too lazy to look up whether ':first-child'
should apply to it then.
"Christoph Päper" wrote Christoph Päper: Lachlan Hunt: table>:not(col) :not(colgroup): first-child::before { display: table-column;
File bug-reports, if you are sure you made no mistake in your test-case.
I suppose not everyone here is reading www-style, too. Those of you should know that it in fact should *not* work, because '::before' is not actually put before the box, but before all of its child boxes. (How could I forget that?) I'm too lazy to look up whether ':first-child' should apply to it then.
W3C CSS spec:
User agents must ignore the following properties with :before and :after
pseudo-elements: 'position', 'float', list properties, and table properties.
The :before and :after pseudo-elements elements allow values of the
'display' property as follows:
- If the subject of the selector is a block-level element, allowed values
are 'none', 'inline', 'block', and 'marker'. If the value of the 'display'
has any other value, the pseudo-element will behave as if the value were
'block'.
- If the subject of the selector is an inline-level element, allowed values
are 'none' and 'inline'. If the value of the 'display' has any other value,
the pseudo-element will behave as if the value were 'inline'.
Pawel Knapik: W3C CSS spec:
CSS 2.0 that is. CSS 2.1 relaxes many of the requirements regarding
generated content. CSS 2.0 already said:
| Note. Other values may be permitted in future levels of CSS.
<http://www.w3.org/TR/CSS2/generate.html#b efore-after-content>
<http://www.w3.org/TR/CSS21/generate.html#b efore-after-content>
(Yes, CSS 2.1 is back to WD status for at least another week.) This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
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