title: A page can have only one server-side Form tag
body: <p>i added a page with html code to a master page and i got that mistake when i launched the page. i wonder what i did wrong!??!</p>
  
  <pre><code>    &lt;%@ Page Title="" Language="C#" MasterPageFile="~/YourGuruMaster.master" AutoEventWireup="true" CodeFile="YourGuru.aspx.cs" Inherits="YourGuru" %&gt;
  
      &lt;asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server"&gt;
          &lt;style type="text/css"&gt;
              .style3
              {
                  width: 114px;
              }
          .style4
          {
              width: 293px;
          }
          .style5
          {
              width: 126px;
          }
          &lt;/style&gt;
      &lt;/asp:Content&gt;
  
  &lt;asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server"&gt;
      &lt;form id="form1" runat="server"&gt;
  
        &lt;div align="center"&gt;
          &lt;p&gt;
              &lt;asp:TextBox ID="Question" runat="server" style="margin-left: 0px" Width="584px"&gt;&lt;/asp:TextBox&gt;
          &lt;/p&gt;
         &lt;/div&gt;
  
  
      &lt;div align="center"&gt;
          &lt;table style="width: 553px"&gt;
               &lt;tr&gt;
                      &lt;td class="style3"&gt;
                          &lt;asp:Button ID="Ask" runat="server" Text="שאל" Width="50px" /&gt;     
                          &lt;/td&gt;
  
                      &lt;td class="style4"&gt;
                          &lt;asp:DropDownList ID="DropDownList1" runat="server"&gt;
                          &lt;/asp:DropDownList&gt;
                          &amp;nbsp   &amp;nbsp   &amp;nbsp
                          &lt;asp:DropDownList ID="DropDownList2" runat="server"&gt;
                          &lt;/asp:DropDownList&gt;
                           &amp;nbsp   &amp;nbsp   &amp;nbsp
                           &lt;asp:DropDownList ID="DropDownList3" runat="server"&gt;
                            &lt;/asp:DropDownList&gt;  
                         &lt;/td&gt;
  
                          &lt;td class="style5"&gt;
                              &lt;asp:Button ID="Answer" runat="server" Text="ענה" Width="50px" /&gt;
                          &lt;/td&gt;
                   &lt;/tr&gt;
              &lt;/table&gt;
      &lt;/div&gt;
  
  
    &lt;/form&gt;
  &lt;/asp:Content&gt;
  </code></pre>