Trouble with preview and actual link

I’m trying to figure out how to use the live preview and Look and Feel settings to get the display to look how I want. I’ve embedded the link for my list onto my facebook page and website, but when I make changes to the look and feel, they don’t seem to be making the changes I want on those, and Im not sure why. Any help would be appreciated.

Hey there, please see if this help article answers your question: