Untitled

import bs4

html_string = """
<html>
<head>
  <title></title>
</head>
<body>
  <p align="center">
  This is before.
  <div style="page-break-after:always">
  </div>
  This is after.
  </p>
</body>
</html>
"""

html_element = bs4.BeautifulSoup(html_string, features="xml")

style = {'style': 'page-break-after:always'}

page_break_elements = html_element.findAll('div', style)

for page_break_element in page_break_elements:
    current = page_break_element
    while True:
        parent = current.parent
        if parent is None:
            break
        if parent.name == 'body':
            current.insert_before(page_break_element)
            break
        current = parent