diff --git a/Bonsai.Editor/GraphView/WorkflowEditorControl.Designer.cs b/Bonsai.Editor/GraphView/WorkflowEditorControl.Designer.cs
index 28c73333..0e415a89 100644
--- a/Bonsai.Editor/GraphView/WorkflowEditorControl.Designer.cs
+++ b/Bonsai.Editor/GraphView/WorkflowEditorControl.Designer.cs
@@ -93,7 +93,7 @@ private void InitializeComponent()
             // 
             this.splitContainer.Panel2.Controls.Add(this.tabControl);
             this.splitContainer.Size = new System.Drawing.Size(300, 200);
-            this.splitContainer.SplitterDistance = 100;
+            this.splitContainer.SplitterDistance = 300;
             this.splitContainer.SplitterWidth = 3;
             this.splitContainer.TabIndex = 1;
             // 
diff --git a/Bonsai.Editor/GraphView/WorkflowEditorControl.cs b/Bonsai.Editor/GraphView/WorkflowEditorControl.cs
index f156e54e..8b4cb850 100644
--- a/Bonsai.Editor/GraphView/WorkflowEditorControl.cs
+++ b/Bonsai.Editor/GraphView/WorkflowEditorControl.cs
@@ -87,6 +87,7 @@ public void ExpandWebView(string label)
         {
             browserLabel.Text = label;
             splitContainer.Panel1Collapsed = false;
+            EnsureWebViewSize();
         }
 
         public void CollapseWebView()
@@ -264,6 +265,12 @@ protected override void OnLoad(EventArgs e)
             base.OnLoad(e);
         }
 
+        protected override void OnSizeChanged(EventArgs e)
+        {
+            EnsureWebViewSize();
+            base.OnSizeChanged(e);
+        }
+
         protected override void OnKeyDown(KeyEventArgs e)
         {
             editorService.OnKeyDown(e);
@@ -437,6 +444,21 @@ protected override void ScaleControl(SizeF factor, BoundsSpecified specified)
                 var adjustV = displayX - marginTop - displayX / 2 - 1;
                 adjustMargin = new Padding(adjustH, adjustV, adjustH, adjustH);
             }
+            splitContainer.SplitterDistance = (int)Math.Round(splitContainer.SplitterDistance * factor.Width);
+            splitContainer.Panel1MinSize = splitContainer.SplitterDistance / 2;
+            splitContainer.FixedPanel = FixedPanel.Panel1;
+        }
+
+        private void EnsureWebViewSize()
+        {
+            if (splitContainer.FixedPanel != FixedPanel.None)
+            {
+                if (Width < 4 * splitContainer.Panel1MinSize)
+                {
+                    splitContainer.SplitterDistance = Width / 2;
+                }
+                else splitContainer.SplitterDistance = 2 * splitContainer.Panel1MinSize - splitContainer.SplitterWidth;
+            }
         }
 
         private void InitializeTheme(TabPage tabPage)