I have loaded a PG text file into Sigil. Sigil does a good job of converting to HTML and tags all entities as <p>......</p>.
After loading, I open the Styles Section and load main.css and save the file. Sigil shows no response to main.css. When I tag a line as a header no centering occurs and paragraph formatting does not happen.
How do I get Sigil to respond the CSS? Am I asking for something that is not there or will it be
