[gtksourceview] css.lang: Add display flow-root

[Tobias Schönberg <tobiasschoenberg src gnome org>]

commit 87c5861c61fefa3114d511cec5e78f36c5a704ba
Author: Tobias Schönberg <tobias47n9e gmail com>
Date:   Mon Jan 30 19:14:44 2017 +0100

    css.lang: Add display flow-root
    
    This patch adds the css property value 'flow-root'.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=777951

 data/language-specs/css.lang |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/data/language-specs/css.lang b/data/language-specs/css.lang
index 94b59d1..d5b8754 100644
--- a/data/language-specs/css.lang
+++ b/data/language-specs/css.lang
@@ -755,6 +755,7 @@
       <keyword>faster</keyword>
       <keyword>fast</keyword>
       <keyword>fixed</keyword>
+      <keyword>flow-root</keyword>
       <keyword>georgian</keyword>
       <keyword>grabbing</keyword>
       <keyword>grab</keyword>