Hello See here click here for lots info. The layout of a basic webpage is controlled by CSS - Cascading Style Sheet which is a separate little file that is linked at the start of the webpage. Feel free to look at my site www.jollyjohn.me.uk which is basically a diary to let the family see how my son is getting on.
As for Filezilla, haven't used it for a long time as I now use FireFtp which is an Add On for Firefox. I do have to use the ip address, supplied by the hosting company, not the website address to connect but once set up, is very easy to use.