[libadwaita/wip/exalm/borderless: 1/13] stylesheet: Update menu button style

[Alexander Mikhaylenko <alexm src gnome org>]

commit 77b9766b1ecd28c69f03e6f25a02fb7f97b97ca9
Author: Alexander Mikhaylenko <alexm gnome org>
Date:   Sat Sep 4 22:38:55 2021 +0500

    stylesheet: Update menu button style
    
    See https://gitlab.gnome.org/GNOME/gtk/-/commit/8b48cf11f9d4fa2916291bfaaed1597b18e6c55e

 src/stylesheet/widgets/_buttons.scss | 17 +++++++++--------
 1 file changed, 9 insertions(+), 8 deletions(-)
---
diff --git a/src/stylesheet/widgets/_buttons.scss b/src/stylesheet/widgets/_buttons.scss
index dec5f229..4ca8b309 100644
--- a/src/stylesheet/widgets/_buttons.scss
+++ b/src/stylesheet/widgets/_buttons.scss
@@ -72,6 +72,15 @@ button {
       }
     }
 
+    &.arrow-button {
+      padding-left: 10px;
+      padding-right: 10px;
+
+      > box {
+        border-spacing: 4px;
+      }
+    }
+
     @at-root %button_basic_drop_active,
     &:drop(active) {
       color: $drop_target_color;
@@ -340,14 +349,6 @@ button.outline {
 }
 
 menubutton {
-  > button > box {
-    border-spacing: 6px;
-  }
-
-  > button.arrow-button > box {
-    border-spacing: 3px;
-  }
-
   &.osd {
     background: none;
     color: inherit;