anchor.diff:  
         <div class="form-group" ng-class="{'has-error': userForm['user[password_confirmation]'].$dirty && userForm['user[password_confirmation]'].$invalid}" ng-if="password.change">
           <div class="input-group">
  -          <span class="input-group-addon"><i class="fa fa-key"></i> </span>
  +          <span class="input-group-addon"><i class="fa fa-key"></i> <span class="exponent"><i class="fa fa-asterisk" aria-hidden="true"></i></span></span>
             <input type="password"
                    name="user[password_confirmation]"
                    ng-model="user.password_confirmation"
  
positive.code: 
        <div class="form-group" ng-class="{'has-error': userForm['user[profile_attributes][phone]'].$dirty && userForm['user[profile_attributes][phone]'].$invalid}">
          <div class="input-group">
            <span class="input-group-addon"><i class="fa fa-phone"></i> </span>
            <input type="text"
                   name="user[profile_attributes][phone]"
                   ng-model="user.profile.phone"
  
negative.code: 
        <div class="form-group" ng-class="{'has-error': userForm['user[profile_attributes][first_name]'].$dirty && userForm['user[profile_attributes][first_name]'].$invalid}">
          <div class="input-group">
            <span class="input-group-addon"><i class="fa fa-user"></i> <span class="exponent"><i class="fa fa-asterisk" aria-hidden="true"></i></span></span>
            <input type="text"
                   name="user[profile_attributes][first_name]"
                   ng-model="user.profile.first_name"
  