<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
    <title>slider</title>
  </head>
  <body>
    <app></app>
    <div class="hideOnZoom" style="width: 100%; height: 50px; background-color: mediumpurple;">
      Footer. Will be hidden on zoom
    </div>
    <script src="dist/build.js"></script>
  </body>
</html>

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
    <title>slider</title>
    <style>
      .footer {
        width: 100%;
        height: 50px;
        background-color: mediumpurple;
        transition: all 1s ease;
        position: absolute;
        bottom: 0;
        left: 0;
        opacity: 1;
      }
      body.zoom .footer{
        height: 0;
        opacity: 0;
      }
    </style>
  </head>
  <body>
    <app></app>
    <div class="footer">
      Footer. Will be hidden on zoom
    </div>
    <script src="dist/build.js"></script>
  </body>
</html>

Update example with footer animation on zoom
Update example with footer animation on zoom
