How to cover the content for non paid user?

Ionic Framework ionic-v3
#1

I have an app, which, I want to cover a small part of content for the in app purchase user only(majority of the page still show to free user).

May I know, what is the best way to do it? Any suggestion or example?

#2 
<ion-content *ngIf="userIsPremium">
</ion-content>

use *ngIf on anything you want

#3

Thanks.

I actually mean how can I cover the content or hide it for premium use
like with *ngIf="userIsPremium" , I shall display in html “premium content” or some more neat and tidy way to cover up the content.