Choosing Where to Start List Numbering
You might want to start a numbered list with something other than a default 1 .
In this example, I’ve omitted some steps but want to maintain the original numbering of the remaining steps. So I start the whole list at 2 (with start="2") and then set the value of the second item to 5 (with value="5"). Both attributes are optional and don’t have to be used together as they are here.
...<body><h1>Changing a light bulb (with a few steps missing)</h1><ol start="2"> <li>Unscrew the old bulb.</li> <li value="5" ...