832626 - break-before has no effect in multi-column content

Status: RESOLVED DUPLICATE of bug 775618

(Core :: CSS Parsing and Computation, defect)

Description

[Justin Fletcher]

Attachment: column-breaks.html

User Agent: Opera/9.80 (Windows NT 5.1) Presto/2.12.388 Version/12.12

Steps to reproduce:

Multi-column text, using break-before: always, and break-before: column to force breaks in the text.



Actual results:

break-before appears to be completely ignored, with content appearing inline with text.



Expected results:

Column breaks should have been actioned for both of 'always' and 'column' break-before settings on the headings.

This is probably related to the issues with page-break-*, described in detail in bug 132035, but might be considered distinct as the CSS columns specification uses a new name ('break-before', rather than 'page-break-before'). With the multi-column CSS, breaks are exposed to the usual screen media type, not just to paginated output (eg printer) which is less common (and therefore less visible to users).

For comparison, Opera 12.12 has quite good support for breaks within columns. Chrome 24 appears to have no support for such breaks in columns.

Comment 1

[Mats Palmgren (inactive)]

'break-before' isn't implemented yet, bug 775618.
Column-specific breaking isn't implemented yet, bug 549114.
There's a meta bug tracking this work and more, bug 775628.