CSS custom coding for my website

I want to change the font style, paragraph spacing and a few design and layout elements of my website. I think I will need to explain what I want in more detail with the freelancer and I would be open to comments and improvements for my website. I would like some ideas from the freelancer as to what I can modify. I would also like be shown where in the CSS style sheet the coding has been changed.\r\n\r\nOne thing that I was not sure how to do, is how to create a blog style post on some of my pages - is this a CSS issue or part of the website theme/template\r\n\r\nI would like this actioned fairly soon, so I can continue on with building my website. \r\n\r\nThanks and I look forward to meeting with you.