Patrick Walton 773614f84c layout: Rewrite Servo's vertical-align support to match CSS 2.1 § ...

10.8, and implement `vertical-align: middle` per CSS 2.1 § 10.8.1.

`InlineMetrics` has been split into `InlineMetrics` for fragments and
`LineMetrics` for lines. Both structures' fields have been renamed in
order to more clearly delineate the difference between *space* and
*content*. Vertical positioning of fragments has been reworked to take
margins and borders into account only for replaced content.

This patch fixes the `vertical_align_super_a.html` reftest. Servo now
matches the rendering that Gecko and WebKit produce.

Additionally, this includes a test for the popular inline-block
centering technique described here:
https://s.codepen.io/shshaw/fullpage/gEiDt?#Inline-Block

2016-10-11 12:47:50 -07:00

..

html4

layout: Rewrite Servo's vertical-align support to match CSS 2.1 §

2016-10-11 12:47:50 -07:00