Horizontal line (end marker) formatting requirements

Particularly in the UK, horizontal lines (called end markers) of various kinds are used:
- at the end of a major section or document (e.g. end of each chapter in a book)
- at the end of a table where there is a change back to ordinary text
- and various other cases

The most common end markers are:
- centred line of dot 5, 2-5, plus 10 times dot 2 (dot 2 end marker)
- centred line of dot 5, 2-5, plus 10 times dot 2-5 (colons end marker)
- full line of dot 5, dot 2-5, followed by full width dot 2
- three centred spaced asterisks (dot 5, 3-5)
- in older (SEB) books, centred line of 12 times dots 2-5
- in older (SEB) books, centred line of 12 times dot 2.

Apart from the line of asterisks, these end markers should not be separated from the last line of the previous text.

Unclear how this might be done with existing CSS, unless the marker is simply coded as text in the document and CSS can then be used to center and keep-with-previous.