revision:
When present, it specifies that the list order should be descending (9,8,7...), instead of ascending (1, 2, 3...).
The reversed attribute can be used on the following element:<ol>.
<ol reversed></ol >
This attribute does not reverse the order of the list items. This attribute works for all numbering systems: numeric, alphabetic, and roman numerals.
<ol style="margin-left:3vw;" reversed> <li>Coffee</li> <li>Tea</li> <li>Milk</li> </ol>
List of all computer subjects are
<ol style="margin-left:3vw;" reversed> <li>Data structures</li> <li>Operating systems</li> <li>python programming</li> <li>DBMS</li> <li>Computer network</li> </ol>