<h1>Download</h1>
<p-tabView orientation="left">
  <!-- 
    <p-tabPanel [header]="item.header" *ngFor="let item of items; let i = index" [selected]="i == 0">
        {{item.content}}
    </p-tabPanel>
   -->
  <p-tabPanel header="Windows" [selected]="true">
    Content 1
  </p-tabPanel>
  <p-tabPanel header="Ubuntu" >
    Content 2
  </p-tabPanel>
  <p-tabPanel header="CentOS">
    Content 3
  </p-tabPanel>
</p-tabView>