46228 - line-height property error: leading should be split equally above and below the the textline in a paragraph.

Status: VERIFIED INVALID

(Core :: Layout, defect, P3)

Description

[Peter Poirier]

From Bugzilla Helper:
User-Agent: Mozilla/4.08 [en] (Win95; I ;Nav)
BuildID:    2000033112

When line-height is specified for a paragraph, the leading (line-height minus 
text height) should be split equally, with half the white space above the line & 
half below it.  In NAV6, it seems an entire line-height's worth of white space 
is placed above the first line, thus positioning the entire paragraph 
incorrectly.  Opera does this wrong in the same way, but it worked almost 
correctly in NAV/Communicator 4.x (I think 4.x products may not have included 
internal leading when calculating the text-height, but it was mostly correct).

Reproducible: Always
Steps to Reproduce:
1.look at the test case
2.
3.

Actual Results:  					

Expected Results:

Comment 1

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

This bug has nothing to do with line-height.  The problem is that P, by default,
has a 1em margin on top and bottom.  4.x was ignoring this margin.  Mozilla is,
correctly, not ignoring it, and neither is Opera.  If you add p { margin: 0; }
to the test, it works.  Marking bug INVALID.

Comment 2

[Keyser Sose]

Source code problem not ours. Marking as verified.