FWIW the Monospace has proved somewhat troublesome, spaces or not to space calls for increasing permutations, doubly so with the "looks like this" section as well as the HTML. I believe it to be fixed. The program does not call for courier alone, it calls for:

  style= font-family: 'Courier New', Courier, mono;    And as I understand it that should cover the ground.

When using CSS I always use fonts like:     font-family: Arial, Helvetica, sans-serif; 

because Helvetica is an Apple preferrence and Arial is Micro$oft. sans-serif is the default drop-down recommended by DreamWeaver. So I do what I am advised.

And if I could I would consider phones and tabs but I had enough trouble getting iPhones to run MP3, and I don't have an iPhone to ring the changes.
Android, (and Symbian because no-one makes viruses/snoops for it and it has native handwriting - eat yer heart out Android)