RichTextBox og Padding?

Kode 

// This code example demonstrates using the Padding property to 
// create a border around a RichTextBox control.
public Form1()
{
    InitializeComponent();

    this.panel1.BackColor = System.Drawing.Color.Blue;
    this.panel1.Padding = new System.Windows.Forms.Padding(5);
    this.panel1.Dock = System.Windows.Forms.DockStyle.Fill;

    this.richTextBox1.BorderStyle = System.Windows.Forms.BorderStyle.None;
    this.richTextBox1.Dock = System.Windows.Forms.DockStyle.Fill;
}