demo/two_vertical.html

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Two vertical grids demo</title>
  <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css">
  <link rel="stylesheet" href="demo.css"/>
  <script src="../dist/gridstack-all.js"></script>
</head>
<body>
  <div class="container-fluid">
    <h1>Two vertical grids demo - with maxRow</h1>
    <p>special care is needed to prevent top grid from growing and causing shifts while you are dragging (which is a know issue).<br>
    You can either set a fix row, or have enough padding on a parent div to allow for an extra row to be created as needed), or....</p>
    <div class="grid-stack" id="grid1"></div>
    <br>
    <div class="grid-stack" id="grid2"></div>
  </div>
  <script src="events.js"></script>
  <script type="text/javascript">
    let opts = {
      row: 1, // set min and max row to freeze the height
      dragOut: true,
      acceptWidgets: true
    }
    GridStack.init(opts, document.getElementById('grid1'))
      .load([{x:0, y:0, content: '0'}, {x:1, y:0, content: '1'}]);
    GridStack.init(opts, document.getElementById('grid2'))
      .load([{x:0, y:0, content: '2'}, {x:1, y:0, content: '3'}]);
  </script>
</body>
</html>