Improve #rcmdraglayer element

skins/elastic/styles/colors.less

@@ -81,7 +81,8 @@
 
 // Drag-n-drop layer
 @color-drag-layer:                  #fff;
-@color-drag-layer-background:       #444;
+@color-drag-layer-background:       @color-taskmenu-background;
+@color-drag-layer-shadow:           #eee;
 
 
 // Messages

skins/elastic/styles/widgets/common.less

@@ -28,13 +28,20 @@ font.bold {
 
 #rcmdraglayer {
     min-width: 260px;
-    width: auto !important;
     width: 260px;
-    background: @color-drag-layer-background;
-    z-index: 250;
+    background-color: @color-drag-layer-background;
     color: @color-drag-layer;
-    white-space: nowrap;
+    box-shadow: 3px 3px 5px @color-drag-layer-shadow;
+    border-radius: .3rem;
+    z-index: 250;
     opacity: .92;
+    padding: .5rem;
+    white-space: nowrap;
+
+    div {
+        line-height: 1.6em;
+        .overflow-ellipsis;
+    }
 }
 
 .frame-content {