title: Can anyone tell me why this haml code does not displays anything
body: <pre><code>- form_tag sign_in_users_path do 
    - if @user.errors.any? 
      %div#error_explanation
    %h2= pluralize(@user.errors.count, "error") 
    %ul
      - @user.errors.full_messages do |msg|
    %li= msg
  
    = label_tag :login
    = text_field_tag :login
    = label_tag :password
    = password_field_tag :password
  
    %div.form_actions
      = submit_tag
  </code></pre>
  
  <p>I am trying to create a login form in haml i am totally new to it. I am able to display all
  other things except this block.</p>