[gnome-builder] css: Remove box-shadow in tab headers

[Christian Hergert <chergert src gnome org>]

commit 90b795e2d69d3d37153d165575bb4d9e3ddc5291
Author: Timm Bäder <mail baedert org>
Date:   Sun Jan 18 09:32:34 2015 +0100

    css: Remove box-shadow in tab headers
    
    Any outside box shadow applied by Adwaita should not leak into the
    open file.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=743116

 src/resources/css/builder.Adwaita.css |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/src/resources/css/builder.Adwaita.css b/src/resources/css/builder.Adwaita.css
index 55f3433..ab49f30 100644
--- a/src/resources/css/builder.Adwaita.css
+++ b/src/resources/css/builder.Adwaita.css
@@ -151,24 +151,28 @@ GtkButton.tab-header-first {
     border-left: none;
     border-top-left-radius: 0px;
     border-bottom-left-radius: 0px;
+    box-shadow: none;
 }
 GtkMenuButton.tab-header-last .button,
 GtkButton.tab-header-last {
     border-right: none;
     border-top-right-radius: 0px;
     border-bottom-right-radius: 0px;
+    box-shadow: none;
 }
 GtkMenuButton.tab-control-first .button,
 GtkButton.tab-control-first {
     border-left: none;
     border-top-left-radius: 0px;
     border-bottom-left-radius: 0px;
+    box-shadow: none;
 }
 GtkMenuButton.tab-control-last .button,
 GtkButton.tab-control-last {
     border-right: none;
     border-top-right-radius: 0px;
     border-bottom-right-radius: 0px;
+    box-shadow: none;
 }