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<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="http://code.jquery.com/mobile/1.4.5/jquery.mobile-1.4.5.min.css">
<script src="http://code.jquery.com/jquery-1.11.3.min.js"></script>
<script src="http://code.jquery.com/mobile/1.4.5/jquery.mobile-1.4.5.min.js"></script>
</head>
<body>

<div data-role="page" id="pageone">
  <div data-role="header">
    <h1>Multiple Rows</h1>
  </div>

  <div data-role="main" class="ui-content">
    <p>Three-column Layout:</p>
    <div class="ui-grid-b">
      <div class="ui-block-a" style="border:1px solid black;"><span>Some Text</span></div>
      <div class="ui-block-b" style="border:1px solid black;"><span>Some Text</span></div>
      <div class="ui-block-c" style="border:1px solid black;"><span>Some Text</span></div>
    </div>

    <p>Three-column Layout With Multiple Rows:</p>
    <div class="ui-grid-b">
      <div class="ui-block-a" style="border:1px solid black;"><span>Some Text</span></div>
      <div class="ui-block-b" style="border:1px solid black;"><span>Some Text</span></div>
      <div class="ui-block-c" style="border:1px solid black;"><span>Some Text</span></div>
      <div class="ui-block-a" style="border:1px solid black;"><span>Some Text</span></div>
      <div class="ui-block-b" style="border:1px solid black;"><span>Some Text</span></div>
      <div class="ui-block-a" style="border:1px solid black;"><span>Some Text</span></div>
    </div>
  </div>
</div>

</body>
</html>


Result:
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