empty columns need 100px for drop

Asset/css/shrink-vertically.css

@@ -26,11 +26,17 @@
  * (BoardDragAndDrop.js: css("min-height", parent().height())). In CSS, min-height
  * beats max-height, so that inline value keeps tall columns from shrinking and our
  * max-height alone does nothing. A stylesheet !important overrides the inline
- * (non-important) min-height, so we reset it to 0 and let max-height win.
+ * (non-important) min-height so max-height can win.
+ *
+ * We override it to a small NON-ZERO value, not 0: Kanboard relies on that same inline
+ * min-height to keep EMPTY columns tall enough to be a drop target, so zeroing it makes
+ * you unable to drop a card into an empty collapsed column. 100px clears Kanboard's 70px
+ * drag placeholder (.draggable-placeholder) with margin, and stays well below max-height
+ * so tall columns still shrink; non-empty columns are unaffected (their content is taller).
  */
 #board td .board-task-list.board-task-list-compact {
     max-height: calc(100vh - var(--sv-shrink-offset, 240px)) !important;
-    min-height: 0 !important;
+    min-height: 100px !important;
 }
 
 /*

Plugin.php

@@ -51,7 +51,7 @@ class Plugin extends Base
 
     public function getPluginVersion()
     {
-        return '1.4.0';
+        return '1.4.1';
     }
 
     public function getPluginHomepage()

VERSION

@@ -1 +1 @@
-ShrinkVertically v1.4
+ShrinkVertically v1.4.1