It is very easy to redo the poor spacing using CSS if that is what you want. But to be honest, that's a very poor format. Too much space and it's going to be hard to read.
The best formatting that works for most people is single space in the paragraphs and no extra space between paragraphs except for section breaks or other things that need to be offset. Also, an indent of 1.2em works very well without being too big.
Trust me, when I say that the format you are trying to duplicate is very poor. If this is something a client is wanting, please tell this client that it is not going to be a good read.