Advertising closing tab menu

Hello I have a problem advertising closing tab menu on large phones

This is problem :

using :

I made ads stand under the tab by giving the tab to margin but it doesn’t work on large phones

How Can i fix it ?

<ion-tabs >
  <ion-tab-bar slot="bottom" style="margin-bottom: 42px;"> 
    <ion-tab-button tab="maintab">
      <ion-icon name="home-outline"></ion-icon>   
    <ion-tab-button tab="raffle">
      <ion-icon name="trophy-outline"></ion-icon>

    <ion-tab-button tab="notification" >
      <ion-badge color="primary"></ion-badge>
      <ion-icon name="notifications-outline"></ion-icon>

    <ion-tab-button tab="message">
      <ion-icon name="chatbox-ellipses-outline"></ion-icon>