Change meta element using the HtmlGenericControl class in asp.net

How to change meta element in asp.net using the HtmlGenericControl class
HTMLGenericControlClass.aspx

<%@ Page Language="C#" %>

<!DOCTYPE html>

<script runat="server">
    protected void Page_Load(object sender, System.EventArgs e)
    {
        if (!Page.IsPostBack)
        {
            Meta1.Attributes["name"] = "description";
            Meta1.Attributes["content"] = "huge asp.net examples with images";
        }
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
    <title>How to change meta element in asp.net using the HtmlGenericControl class</title>
    <meta id="Meta1" runat="server" />
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:Navy; font-style:italic;">HtmlGenericControl Class Example: change meta element</h2>
        
    </div>
    </form>
</body>
</html>