diff --git a/src/Apps/NetPad.Apps.App/App/src/windows/main/panes/output-pane/output-pane.scss b/src/Apps/NetPad.Apps.App/App/src/windows/main/panes/output-pane/output-pane.scss
index bdbea69a..ca109a50 100644
--- a/src/Apps/NetPad.Apps.App/App/src/windows/main/panes/output-pane/output-pane.scss
+++ b/src/Apps/NetPad.Apps.App/App/src/windows/main/panes/output-pane/output-pane.scss
@@ -53,7 +53,10 @@ output-pane {
         }
 
         .empty-collection {
-            @extend %null;
+            color: white;
+            background-color: $table-info-header-bg-color;
+            padding: 0.25rem 0.2rem;
+            display: inline-block;
         }
 
         .group {
@@ -112,14 +115,6 @@ output-pane {
                 }
             }
 
-            td {
-                img,
-                audio,
-                video {
-                    margin: 5px 0;
-                }
-            }
-
             &.titled {
                 border-left: 2px orange solid;
                 margin-top: 0.5rem;
@@ -160,6 +155,7 @@ output-pane {
             }
 
             th {
+                font-weight: 600;
                 line-height: 1;
                 padding: 3px 5px;
                 color: white;
@@ -189,14 +185,8 @@ output-pane {
                 top: -4px; // An extra -1 to account for border of info header
             }
 
-            td {
-                line-height: $font-size + 5;
-                padding: 0 5px;
-
-                > table {
-                    margin-top: 4px !important;
-                    margin-bottom: 4px !important;
-                }
+            td > table {
+                margin: 3px !important;
             }
 
             tbody td {
@@ -208,7 +198,7 @@ output-pane {
             }
 
             .property-name {
-                font-weight: bold;
+                font-weight: 600;
             }
 
             .collapse-actionable {
diff --git a/src/External/O2Html/Converters/CollectionHtmlConverter.cs b/src/External/O2Html/Converters/CollectionHtmlConverter.cs
index df3ed790..84fd79a6 100644
--- a/src/External/O2Html/Converters/CollectionHtmlConverter.cs
+++ b/src/External/O2Html/Converters/CollectionHtmlConverter.cs
@@ -21,7 +21,14 @@ public override Node WriteHtml<T>(
         SerializationScope serializationScope,
         HtmlSerializer htmlSerializer)
     {
-        return Convert(obj, type, serializationScope, htmlSerializer).node;
+        var result = Convert(obj, type, serializationScope, htmlSerializer);
+
+        if (result.collectionLength == 0 && serializationScope.Depth > 0 && htmlSerializer.SerializerOptions.DoNotSerializeNonRootEmptyCollections)
+        {
+            return new EmptyCollection(type).AddClass(htmlSerializer.SerializerOptions.CssClasses.EmptyCollection);
+        }
+
+        return result.node;
     }
 
     public override void WriteHtmlWithinTableRow<T>(
@@ -41,7 +48,7 @@ public override void WriteHtmlWithinTableRow<T>(
 
         var result = Convert(obj, type, serializationScope, htmlSerializer);
 
-        if (result.collectionLength == 0 && htmlSerializer.SerializerOptions.DoNotSerializeNonRootEmptyCollections)
+        if (result.collectionLength == 0 && serializationScope.Depth > 0 && htmlSerializer.SerializerOptions.DoNotSerializeNonRootEmptyCollections)
         {
             td.AddChild(new EmptyCollection(type).AddClass(htmlSerializer.SerializerOptions.CssClasses.EmptyCollection));
         }
@@ -138,7 +145,7 @@ protected string GetHeaderRowText(
                     {
                         keyValueStr = keyValue.ToString();
                     }
-                    else if( typeCategory == TypeCategory.Collection)
+                    else if (typeCategory == TypeCategory.Collection)
                     {
                         keyValueStr = keyValue.GetType().GetReadableName();
                     }
@@ -167,7 +174,6 @@ protected string GetHeaderRowText(
 
                         keyValueStr += "}";
                     }
-
                 }
 
                 keyValueStr = keyValueStr == null
diff --git a/src/External/O2Html/Dom/Elements/EmptyCollection.cs b/src/External/O2Html/Dom/Elements/EmptyCollection.cs
index b72e3510..12eeba6c 100644
--- a/src/External/O2Html/Dom/Elements/EmptyCollection.cs
+++ b/src/External/O2Html/Dom/Elements/EmptyCollection.cs
@@ -11,6 +11,6 @@ public EmptyCollection() : base("span")
 
     public EmptyCollection(Type collectionType) : base("span")
     {
-        this.AddEscapedText($"0 items ({collectionType.GetReadableName()})");
+        this.AddEscapedText("(0 items)");
     }
 }