anchor.diff:            |  information about you
           .submit-btn-container
             button.btn.btn-block.btn-success(type='submit'
  +            tabindex="6"
               ng-disabled='registerForm.$invalid || submitLoading')
               img(src="img/button-s.png", class="loader", ng-show="submitLoading")
               span(class="loading_text", ng-hide="oldUserBlob", l10n) Sign Up
  
positive.code:           label(for='register_password2', l10n) Confirm password
            input.form-control#register_password2(
              name='register_password2', autocomplete="off"
              type='password'
              ng-model="password2"
              required, rp-same-in-set="passwordSet")
  
negative.code:           .input-group
              span.input-group-addon.ripple-addon ~
              input.form-control#register_username(
                name='register_username', type='text', ng-model="username"
                tabindex="1"
                required, rp-focus, autocomplete="off", maxlength="20", rpDest
                rp-available-name
                rp-available-name-invalid-reason="usernameInvalidReason"
                rp-available-name-reserved-for="usernameReservedFor"
                rp-loading="usernameLoading")
            .errorGroup(ng-messages='registerForm.register_username.$error', ng-hide="usernameLoading")
              .success(ng-show='registerForm.register_username.$valid')
                 i.fa.fa-check 
  