<div id="mydiv">
<label>sample</label>
<button>send</button>
</div>
<div id="2ndHtml">
<asp:Literal ID="MyHtml" runat="server" />
</div>
code-behind
protected void Page_Load(object sender, EventArgs e)
{
MyHtml.Text = "<p><strong>Hello World</strong></p>";
}