In ionic we can add ion-navbar and ion-toolbar in ion-header but I want to ad some customized menu bar to my application in top of the ion-content for that I add ion row and add z-index and position CSS for that it works in browser but when it build that menu-bar change position it is not fixed in top. I guess that after I fixed the position user cannot scroll the ion-content when scrolling the position of the menu is changes. How can I add customize menu bar to the top of ion-content
this image shows the menu bar in gray color

<ion-header>
<ion-navbar>
<ion-title>Home</ion-title>
</ion-navbar>
</ion-header>
<ion-content>
<ion-grid>
<ion-row style="position: fixed;height: 50px;background: #444444">
<button ion-button small>test btn</button>
</ion-row>
<ion-row *ngFor="let item of data" style="background: #eee;border: 1px solid #888;height: 40px">
{{item.name}} - {{item.id}}
</ion-row>
</ion-grid>
</ion-content>