304840 - 'line-height: normal' gives a line-height larger than the font height

Status: NEW

(Core :: Layout: Text and Fonts, defect)

Description

[Pawel Widera]

Inline element (span) nested in a block element (div) causes the parent element
to have an extra vertical padding (on the top and at the bottom of a span).

Expected results: no extra padding should be visible (as in Opera nad IE).

Comment 1

[Pawel Widera]

Attachment: minimal testcase

Comment 2

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

Does this go away if you change the value of 'line-height' on the DIV to '1.0',
'normal', or '1em'?

Comment 3

[Pawel Widera]

Attachment: extended testcase

line-height: normal is the default value when extra padding appears.
Setting line-height: 1em reduces div height too much.
Additional experiments with div height to set equal height of div and span also
fails.

Comment 4

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

Changing summary to reflect the problem that you're pointing out (which I don't
see on a GTK2 build).  I tend to think it's not a bug.

Comment 5

[Pawel Widera]

Attachment: win32 screenshot

Fx 1.06 on Linux/Gtk2 is not affected.
Bug appears in win32 versions of 1.7.11 and Fx 1.06

Comment 6

[Guilherme Lima]

Nightly 27 and Chrome 29 shows similar results. IE10 is different. Basically the same results from 8 years ago.