How to access html controls in code behind
<p>I'm trying to follow this <a href="http://www.asp.net/web-forms/tutorials/security/membership/validating-user-credentials-against-the-membership-user-store-cs" rel="nofollow">example</a> on how to validate credentials. However, it uses asp: controls for the login form.</p>

<p>If I were to use html controls instead so CSS styles can be applied, eg</p>

<pre><code>&lt;div id="login"&gt;
&lt;a href="#" id="lclose"&gt;&lt;/a&gt;

        &lt;form action="#" runat="server"&gt;
            &lt;fieldset&gt;
                &lt;div class="frame"&gt;
                    &lt;h4&gt;Login&lt;/h4&gt;
                    &lt;small&gt;Sign in to your account.&lt;/small&gt;
                    &lt;div class="clear"&gt;&lt;/div&gt;
                    &lt;input type="text" value="Username" class="input-text autoclear" /&gt;
                    &lt;input type="password" value="Password" class="input-text autoclear"/&gt;
                &lt;/div&gt;

                &lt;div class="separator"&gt;&lt;/div&gt;

                &lt;div&gt;
                &lt;input type="submit" value="Sign in" class="input-submit float-right" runat="server" onserverclick="LoginButton_Click"/&gt;
                &lt;a href="#" class="float-left"&gt;Forgot your password?&lt;/a&gt;
                &lt;/div&gt;

            &lt;/fieldset&gt;
        &lt;/form&gt;

&lt;/div&gt;
</code></pre>

<p>How do I access the Username &amp; Password in code behind similar to? </p>

<pre><code>protected void LoginButton_Click(object sender, EventArgs e)
{
    // Validate the user against the Membership framework user store
    if (Membership.ValidateUser(UserName.Text, Password.Text))
    {
        // Log the user into the site
        FormsAuthentication.RedirectFromLoginPage(UserName.Text, RememberMe.Checked);
    }
    // If we reach here, the user's credentials were invalid
    InvalidCredentialsMessage.Visible = true;
}
</code></pre>

<p>What is the correct syntax instead of <code>UserName.Text, Password.Text</code>?</p>
