http://lists.w3.org/Archives/Public/www-style/2014Jun/0312.html

It's intended to match a literal `{`, but that must be escaped as it's
a meta character in JS regex.

Bumping them for every release just adds too much git
noise and history blowup.

Issue #2551

Add shape-image-threshold and shape-margin.

A more detailed problem description in issue #2523

It is turning into a major headache, since apparently a
lot of modes are written with the assumption that empty
tokens are okay.

Closes #2517

Issue #2516

Issue #2465

And style them differently from unknown properties.

Issue #2356

Some properties were outdated and some other were missing according to last
version of the CSS Grid Layout spec:
http://www.w3.org/TR/css3-grid-layout/#property-index

..with the newly added simple support for @keyframes

Closes #2161

Also resorted the next few lines so one would not stick out farther than
the others.

https://developer.mozilla.org/en-US/docs/Web/CSS/animation-fill-mode

Closes #2162

https://developer.mozilla.org/en-US/docs/Web/CSS/At-rule

Issue #2131

Closes #2131

Issue #2087

All tests now check whether indentation from mode corresponds
to the indentation in the test source. test.indentation is
gone.

Issue #2049

Issue #2048

Closes #2048

Closes #2047

Closes #2046

Closes #1925.

Kill all tabs.

Issue #1851