81382 - add support for CSS3 multi-columns

Status: RESOLVED DUPLICATE of bug 251162

(Core :: CSS Parsing and Computation, enhancement)

Description

[Roland Unger]

From Bugzilla Helper:
User-Agent: Mozilla/4.77 [en] (Win98; U)
BuildID:    2001050515

Colums properties like 
<div style="columns: 2; column-gap: 50px;
   column-rule: 1px solid black">
are ingnored.


Reproducible: Always
Steps to Reproduce:
1. Enter <div style="columns: 2; column-gap: 50px;
   column-rule: 1px solid black">...</div>
2.
3.

Actual Results:  No columns.

Expected Results:  2 columns with column-rule.

Comment 1

[Matthew Wilson]

I believe multiple columns are CSS3, not CSS2.

Comment 2

[Boris Zbarsky [:bzbarsky]]

columns are css3.  setting status to new, but unless this blocks internal mozilla 
code this will probably not be in for a bit... Full support for CSS1/CSS2 is more 
important.  Helpwanted.

Comment 3

[Daniel Glazman (:glazou) (not active in Mozilla any more)]

Columns could be CSS 3 if CSS 3 was already a specification... For the moment,
multi-columns in CSS are only a Working Draft [1], a work in progress.

Tagging [RFE] and pushing to Future. Cc:ing Marc Attinasi for his information.

Comment 4

[Roland Unger]

Maybe it should be checked if multi-columns can cause changes in the concepts
of the rendering engine - if yes, preparations should be made.

Comment 5

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

Assigning pierre's remaining Style System-related bugs to myself.

Comment 6

[Lalo Martins]

I know this is probably very far from the list of priorities, but I'm voting for
this one. My rationale:

<li>the amazing number of ugly hacks people have been using to emulate this effect

<li>and the fact that an experimental implementation would help this particular
module of css3 move forward - it seems to be quite stalled.

Comment 7

[Anne (:annevk)]

Why 'helpwanted'? The draft isn't even correct yet. Look for example to chapter
10 (<http://www.w3.org/TR/css3-multicol/#floating>).

Comment 8

[Robert O'Callahan (:roc) (email my personal email if necessary)]

I'm working on this

Comment 9

[Robert O'Callahan (:roc) (email my personal email if necessary)]

*** This bug has been marked as a duplicate of 251162 ***