HTML Code

<!DOCTYPE html>

<html lang="en">

<head>

  <meta charset="utf-8">

  <title>jQuery .scrollTop on scroll</title>

  <style>

    body { font-family: sans-serif; padding: 16px; }

    #panel {

      width: 280px; height: 160px;

      overflow-y: auto; overflow-x: hidden;

      border: 2px solid #0d9488;

      background: #ecfdf5;

      padding: 8px;

    }

    .block {

      padding: 16px;

      margin-bottom: 8px;

      background: #14b8a6;

      color: #fff;

      border-radius: 6px;

    }

    #val { margin-top: 10px; font-weight: bold; color: #334155; }

  </style>

</head>

<body>

  <div id="panel">

    <div class="block">Section 1</div>

    <div class="block">Section 2</div>

    <div class="block">Section 3</div>

    <div class="block">Section 4</div>

    <div class="block">Section 5</div>

    <div class="block">Section 6</div>

  </div>

  <p id="val">scrollTop: 0</p>

  <script src="https://code.jquery.com/jquery-3.7.1.min.js"></script>

  <script>

    $("#panel").on("scroll", function() {

      $("#val").text("scrollTop: " + $(this).scrollTop());

    });

  </script>

</body>

</html>

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jQuery .scrollTop() — on scroll display (Try It)