[libadwaita/wip/exalm/combobox] stylesheet: Make comboboxes and dropdowns less likely to stretch

[Alexander Mikhaylenko <alexm src gnome org>]

commit ec5ee4ce669dffc875642d76f7f9cfa01b4fa7ef
Author: Alexander Mikhaylenko <alexm gnome org>
Date:   Mon May 9 00:25:39 2022 +0400

    stylesheet: Make comboboxes and dropdowns less likely to stretch
    
    Cell views are taller than labels, and e.g. 1.25 font scale is enough to
    make comboboxes 2px taller than normally. Give them 6px of extra buffer,
    enough for font scale 2.0.

 src/stylesheet/widgets/_dropdowns.scss | 8 ++++++++
 1 file changed, 8 insertions(+)
---
diff --git a/src/stylesheet/widgets/_dropdowns.scss b/src/stylesheet/widgets/_dropdowns.scss
index af178d27..7d7df3de 100644
--- a/src/stylesheet/widgets/_dropdowns.scss
+++ b/src/stylesheet/widgets/_dropdowns.scss
@@ -10,6 +10,14 @@ dropdown > button > box {
 
 dropdown,
 combobox {
+  // Since cell view is taller than a plain label, make sure
+  // the button doesn't get stretched with a larger font
+  button {
+    padding-top: 2px;
+    padding-bottom: 2px;
+    min-height: 30px;
+  }
+
   arrow {
     -gtk-icon-source: -gtk-icontheme('pan-down-symbolic');
     min-height: 16px;