at the end of each paragraph. (other people have similar codes that work - I'm just using what I learned in a class I took) if you have more than one paragraph.
Makes me think of the old days here where when someone forgot to close the tag the next posts were also italicized.
It is nice when someone repeats part of the post they are responding to, makes going back posts (sometimes many) to get an understanding unnecessary.
When I do have to go back I use a shift click on the referenced post number to open a new window.
Made my day!
Link for short video of above: