Примеры для jQuery .scrollTop()

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Get the scrollTop of a paragraph.

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<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>scrollTop demo</title>
  <style>
  p {
    margin: 10px;
    padding: 5px;
    border: 2px solid #666;
  }
  </style>
  <script src="https://code.jquery.com/jquery-1.10.2.js"></script>
</head>
<body>
 
<p>Hello</p><p></p>
 
<script>
var p = $( "p:first" );
$( "p:last" ).text( "scrollTop:" + p.scrollTop() );
</script>
 
</body>
</html>

Демонстрация:

Set the scrollTop of a div.

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<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>scrollTop demo</title>
  <style>
  div.demo {
    background: #ccc none repeat scroll 0 0;
    border: 3px solid #666;
    margin: 5px;
    padding: 5px;
    position: relative;
    width: 200px;
    height: 100px;
    overflow: auto;
  }
  p {
    margin: 10px;
    padding: 5px;
    border: 2px solid #666;
    width: 1000px;
    height: 1000px;
  }
  </style>
  <script src="https://code.jquery.com/jquery-1.10.2.js"></script>
</head>
<body>
 
<div class="demo"><h1>lalala</h1><p>Hello</p></div>
 
<script>
$( "div.demo" ).scrollTop( 300 );
</script>
 
</body>
</html>

Демонстрация: