How to create line breaks between dynamically generated labels in a placeholder?

This is the code below in code behind file's Page_Load event:

        LinkButton linkButton = new LinkButton();
        linkButton.ID = "LinkButtonDynamicInPlaceHolder1Id" + i;
        linkButton.ForeColor = Color.Blue;
        linkButton.Font.Bold = true;
        linkButton.Font.Size = 14;
        linkButton.Font.Underline = false;
        linkButton.Text = itemList[i].ItemTitle.InnerText;
        linkButton.Click += new EventHandler(LinkButton_Click);
        linkButton.Attributes.Add("LinkUrl",itemList[i].ItemLink.InnerText);
        PlaceHolder1.Controls.Add(linkButton); 
        Label label = new Label();
        label.ID = "LabelDynamicInPlaceHolder1Id" + i;
        label.ForeColor = Color.DarkGray;
        label.Text = itemList[i].ItemDescription.InnerText;
        PlaceHolder1.Controls.Add(label);

I want a line break between each control generated.