title: How to make site show always in Portrait orientation?
body: <p>I'm doing a mobile site, and i need it to show screen as it always was in portrait orientation. Like Instagram app. works.</p>
  
  <p>How could i do this with codes ?</p>
  
  <pre><code>if (window.orientation === 90 || window.orientation === -90) {
     window.orientation=0;
  }
  </code></pre>