Most sites like this provide you with the code that you just copy and paste into your own web page. There'll probably be a graphic, supplied by them, and a link back to their site. I was forced to learn basic HTML to correct the problem. Eventually, during the course of several months of learning HTML code, I decided it would be better if I just wrote everything myself and got rid of the interferring editor. Unfortunately, different browsers recognize different codes.
Some basic things are the same.
But, enough is different that you'll want to check your page with another browser just to make sure it's presentable. Not everyone will be using the browser you do, or have the same settings on their computer. Netscape Communicator and Microsoft Internet Explorer are available for downloading for free, so you could install both and then pull up your site in each to see how the pages look. Or, if your library has Internet access and they use another browser, go there and type in your page's address. See what it looks like.