Why text is not display in in html using ionic?

I am trying to make single page application using ionic .But why I am not able to see contend in tag.my contend text is hidden why ?

code

<ion-view>
      <ion-header-bar class=" bar bar-positive">
      <h1 class="title">Title!</h1>    
          
      </ion-header-bar>
      <ion-content>
          <h1>contend</h1>
          </ion-content>
          <ion-footer-bar class=" bar bar-footer bar-positive">
           <h1 class="title">Fotter!</h1>
          </ion-footer-bar>
      </ion-view>

don’t see a problem in your codepen

So the issue was that you didn’t initial the angular module

<h1>contend</h1>

I am nit able to see this text in my view