Ion list doesn't scroll inside ion content

Ionic Framework ionic-v3
1

Dear community,

I have the following code :

<ion-content class="no-scroll"> 
   <ion-list>
     <ion-item>my item</ion-item>
     <ion-item>my item</ion-item>
     <ion-item>my item</ion-item>
     <ion-item>my item</ion-item>
     <ion-item>my item</ion-item>
     <ion-item>my item</ion-item>
     <ion-item>my item</ion-item>
     <ion-item>my item</ion-item>
  </ion-list>

</ion-content>

How may I make the ion-list scrollable ( with bounce or without) inside my ion content (which is not scrollable) ? I tried :

     ion-list {  overflow-y: scroll !important; } // -> Not working

Any idea ? Thanks