anchor.diff:                  span.glyphicon.glyphicon-ok-circle.class-code-valid-icon
                 else
                   span.glyphicon.glyphicon-remove-circle.class-code-valid-icon
  -        
  +
           .render
             if _.isEmpty(view.signupState.get('classCode'))
               p.medium-gray
  
positive.code:             p.medium-gray
                p.large-gray.classroom-name= view.classroom.get('name')
                br
                if view.classroom.owner.get('firstName')
                  p.medium-gray.teacher-name= view.classroom.owner.get('firstName') + " " + view.classroom.owner.get('lastName')
                else if view.classroom.owner.get('name')
                  p.medium-gray.teacher-name= view.classroom.owner.get('name')
            else
              p.medium-gray(data-i18n="signup.classroom_not_found")
            
        when 'teacher'
          // TODO
        when 'individual'
  
negative.code: 
        default
          p.medium-gray
            span Sign-up error, please contact
            =" "
            a(href="mailto:support@codecombat.com") support@codecombat.com
            | .
  