Ben 10

<!doctype html>
<html dir="ltr" lang="en">

    New Tab
          body {
        background: #353535;
        margin: 0;
      }

      #backgroundImage {
        border: none;
        height: 100%;
        pointer-events: none;
        position: fixed;
        top: 0;
        visibility: hidden;
        width: 100%;
      }

      [show-background-image] #backgroundImage {
        visibility: visible;
      }


  <body>

    <ntp-app></ntp-app>



  </body>
</html>