diff --git a/Codist/Margins/SelectionMargin.cs b/Codist/Margins/SelectionMargin.cs
index 3630525a..2de6e0ba 100644
--- a/Codist/Margins/SelectionMargin.cs
+++ b/Codist/Margins/SelectionMargin.cs
@@ -13,14 +13,12 @@ sealed class SelectionMargin : FrameworkElement, IDisposable, IWpfTextViewMargin
 	{
 		public const string MarginName = nameof(SelectionMargin);
 		const string FormatName = "Selected Text";
-		const double SelectionRenderPadding = -3;
 		const double MarginOpacity = 0.3;
 		readonly IWpfTextView _TextView;
 		readonly IEditorFormatMap _EditorFormatMap;
 		readonly IVerticalScrollBar _ScrollBar;
 
 		Brush _SelectionBrush;
-		double _ScrollbarWidth;
 
 		public SelectionMargin(IWpfTextView textView, IVerticalScrollBar scrollBar) {
 			_TextView = textView;
@@ -114,13 +112,6 @@ protected override void OnRender(DrawingContext drawingContext) {
 			}
 		}
 
-		protected override void OnRenderSizeChanged(SizeChangedInfo sizeInfo) {
-			base.OnRenderSizeChanged(sizeInfo);
-			var b = _ScrollBar as FrameworkElement;
-			_ScrollbarWidth = b.ActualWidth + SelectionRenderPadding;
-			InvalidateVisual();
-		}
-
 		void DrawSelections(DrawingContext drawingContext) {
 			var ss = _TextView.Selection.SelectedSpans;
 			var threshold = ss.Count < 2 ? 3 : 0.5;