I would like to change the tagline area to insert my own logo. Where do I do that ins CSS? Please be as simplistic as possible with help. I know next to nothing about coding. I would like to insert a graphic that needs to be centered and then below it, the graphic with my blog's name will be on the left (hope that makes sense). In other words, I hope I'm not limited by the space I can change in that area, also.
Here is my blog, but that won't help you because I haven't changed anything yet. http://gooddinnermom.com/
Thanks for any help.