diff --git a/2020/11/BorderlessForm.cs b/2020/11/BorderlessForm.cs
new file mode 100644
index 0000000..a387a47
--- /dev/null
+++ b/2020/11/BorderlessForm.cs
@@ -0,0 +1,274 @@
+using System.Drawing;
+using System.Windows.Forms;
+
+namespace WindowsFormsApp2
+{
+    public class BorderlessForm : Form
+    {
+        protected bool isDragging = false;
+        protected Rectangle lastRectangle = new Rectangle();
+
+
+        public BorderlessForm() : base()
+        {
+            this.FormBorderStyle = FormBorderStyle.None;
+
+            initialiseFormEdge();
+        }
+
+
+        protected void initialiseFormEdge()
+        {
+            int resizeWidth = 5;
+
+            this.MouseDown += new MouseEventHandler(form_MouseDown);
+            this.MouseMove += new MouseEventHandler(form_MouseMove);
+            this.MouseUp += delegate (object sender, MouseEventArgs e)
+            {
+                isDragging = false;
+            };
+
+            // bottom
+            UserControl uc1 = new UserControl()
+            {
+                Anchor = (AnchorStyles.Left | AnchorStyles.Bottom | AnchorStyles.Right),
+                Height = resizeWidth,
+                Width = this.DisplayRectangle.Width - (resizeWidth * 2),
+                Left = resizeWidth,
+                Top = this.DisplayRectangle.Height - resizeWidth,
+                BackColor = Color.Transparent,
+                Cursor = Cursors.SizeNS
+            };
+            uc1.MouseDown += form_MouseDown;
+            uc1.MouseUp += form_MouseUp;
+            uc1.MouseMove += delegate (object sender, MouseEventArgs e)
+            {
+                if (isDragging)
+                {
+                    this.Size = new Size(lastRectangle.Width, e.Y - lastRectangle.Y + this.Height);
+                }
+            };
+            uc1.BringToFront();
+
+            this.Controls.Add(uc1);
+
+            // right
+            UserControl uc2 = new UserControl()
+            {
+                Anchor = (AnchorStyles.Top | AnchorStyles.Right | AnchorStyles.Bottom),
+                Height = this.DisplayRectangle.Height - (resizeWidth * 2),
+                Width = resizeWidth,
+                Left = this.DisplayRectangle.Width - resizeWidth,
+                Top = resizeWidth,
+                BackColor = Color.Transparent,
+                Cursor = Cursors.SizeWE
+            };
+            uc2.MouseDown += form_MouseDown;
+            uc2.MouseUp += form_MouseUp;
+            uc2.MouseMove += delegate (object sender, MouseEventArgs e)
+            {
+                if (isDragging)
+                {
+                    this.Size = new Size(e.X - lastRectangle.X + this.Width, lastRectangle.Height);
+                }
+            };
+            uc2.BringToFront();
+
+            this.Controls.Add(uc2);
+
+            // bottom-right
+            UserControl uc3 = new UserControl()
+            {
+                Anchor = (AnchorStyles.Bottom | AnchorStyles.Right),
+                Height = resizeWidth,
+                Width = resizeWidth,
+                Left = this.DisplayRectangle.Width - resizeWidth,
+                Top = this.DisplayRectangle.Height - resizeWidth,
+                BackColor = Color.Transparent,
+                Cursor = Cursors.SizeNWSE
+            };
+            uc3.MouseDown += form_MouseDown;
+            uc3.MouseUp += form_MouseUp;
+            uc3.MouseMove += delegate (object sender, MouseEventArgs e)
+            {
+                if (isDragging)
+                {
+                    this.Size = new Size((e.X - lastRectangle.X + this.Width), (e.Y - lastRectangle.Y + this.Height));
+                }
+            };
+            uc3.BringToFront();
+
+            this.Controls.Add(uc3);
+
+            // top-right
+            UserControl uc4 = new UserControl()
+            {
+                Anchor = (AnchorStyles.Top | AnchorStyles.Right),
+                Height = resizeWidth,
+                Width = resizeWidth,
+                Left = this.DisplayRectangle.Width - resizeWidth,
+                Top = 0,
+                BackColor = Color.Transparent,
+                Cursor = Cursors.SizeNESW
+            };
+            uc4.MouseDown += form_MouseDown;
+            uc4.MouseUp += form_MouseUp;
+            uc4.MouseMove += delegate (object sender, MouseEventArgs e)
+            {
+                if (isDragging)
+                {
+                    int diff = (e.Location.Y - lastRectangle.Y);
+                    int y = (this.Location.Y + diff);
+
+                    this.Location = new Point(this.Location.X, y);
+                    this.Size = new Size(e.X - lastRectangle.X + this.Width, (this.Height + (diff * -1)));
+                }
+            };
+            uc4.BringToFront();
+            //uc4.BackColor = Color.Firebrick;
+
+            this.Controls.Add(uc4);
+
+            // top
+            UserControl uc5 = new UserControl()
+            {
+                Anchor = (AnchorStyles.Top | AnchorStyles.Left | AnchorStyles.Right),
+                Height = resizeWidth,
+                Width = this.DisplayRectangle.Width - (resizeWidth * 2),
+                Left = resizeWidth,
+                Top = 0,
+                BackColor = Color.Transparent,
+                Cursor = Cursors.SizeNS
+            };
+            uc5.MouseDown += form_MouseDown;
+            uc5.MouseUp += form_MouseUp;
+            uc5.MouseMove += delegate (object sender, MouseEventArgs e)
+            {
+                if (isDragging)
+                {
+                    int diff = (e.Location.Y - lastRectangle.Y);
+                    int y = (this.Location.Y + diff);
+
+                    this.Location = new Point(this.Location.X, y);
+                    this.Size = new Size(lastRectangle.Width, (this.Height + (diff * -1)));
+                }
+            };
+            uc5.BringToFront();
+
+            this.Controls.Add(uc5);
+
+            // left
+            UserControl uc6 = new UserControl()
+            {
+                Anchor = (AnchorStyles.Top | AnchorStyles.Left | AnchorStyles.Bottom),
+                Height = this.DisplayRectangle.Height - (resizeWidth * 2),
+                Width = resizeWidth,
+                Left = 0,
+                Top = resizeWidth,
+                BackColor = Color.Transparent,
+                Cursor = Cursors.SizeWE
+            };
+            uc6.MouseDown += form_MouseDown;
+            uc6.MouseUp += form_MouseUp;
+            uc6.MouseMove += delegate (object sender, MouseEventArgs e)
+            {
+                if (isDragging)
+                {
+                    int diff = (e.Location.X - lastRectangle.X);
+                    int x = (this.Location.X + diff);
+
+                    this.Location = new Point(x, this.Location.Y);
+                    this.Size = new Size((this.Width + (diff * -1)), this.Height);
+                }
+            };
+            uc6.BringToFront();
+
+            this.Controls.Add(uc6);
+
+            // bottom-left
+            UserControl uc7 = new UserControl()
+            {
+                Anchor = (AnchorStyles.Bottom | AnchorStyles.Left),
+                Height = resizeWidth,
+                Width = resizeWidth,
+                Left = 0,
+                Top = this.DisplayRectangle.Height - resizeWidth,
+                BackColor = Color.Transparent,
+                Cursor = Cursors.SizeNESW
+            };
+            uc7.MouseDown += form_MouseDown;
+            uc7.MouseUp += form_MouseUp;
+            uc7.MouseMove += delegate (object sender, MouseEventArgs e)
+            {
+                if (isDragging)
+                {
+                    int diff = (e.Location.X - lastRectangle.X);
+                    int x = (this.Location.X + diff);
+
+                    this.Location = new Point(x, this.Location.Y);
+                    this.Size = new Size((this.Width + (diff * -1)), (e.Y - lastRectangle.Y + this.Height));
+                }
+            };
+            uc7.BringToFront();
+
+            this.Controls.Add(uc7);
+
+            // bottom-left
+            UserControl uc8 = new UserControl()
+            {
+                Anchor = (AnchorStyles.Top | AnchorStyles.Left),
+                Height = resizeWidth,
+                Width = resizeWidth,
+                Left = 0,
+                Top = 0,
+                BackColor = Color.Transparent,
+                Cursor = Cursors.SizeNWSE
+            };
+            uc8.MouseDown += form_MouseDown;
+            uc8.MouseUp += form_MouseUp;
+            uc8.MouseMove += delegate (object sender, MouseEventArgs e)
+            {
+                if (isDragging)
+                {
+                    int dX = (e.Location.X - lastRectangle.X);
+                    int dY = (e.Location.Y - lastRectangle.Y);
+                    int x = (this.Location.X + dX);
+                    int y = (this.Location.Y + dY);
+
+                    this.Location = new Point(x, y);
+                    this.Size = new Size((this.Width + (dX * -1)), (this.Height + (dY * -1)));
+                }
+            };
+            uc8.BringToFront();
+
+            this.Controls.Add(uc8);
+        }
+
+
+        private void form_MouseDown(object sender, MouseEventArgs e)
+        {
+            if (e.Button == MouseButtons.Left)
+            {
+                isDragging = true;
+                lastRectangle = new Rectangle(e.Location.X, e.Location.Y, this.Width, this.Height);
+            }
+        }
+
+        private void form_MouseMove(object sender, MouseEventArgs e)
+        {
+            if (isDragging)
+            {
+                int x = (this.Location.X + (e.Location.X - lastRectangle.X));
+                int y = (this.Location.Y + (e.Location.Y - lastRectangle.Y));
+
+                this.Location = new Point(x, y);
+            }
+        }
+
+        private void form_MouseUp(object sender, MouseEventArgs e)
+        {
+            isDragging = false;
+        }
+
+    }
+}