For this web site I strive to only use Classic MacOS tech as much as possible. Most of the text and HTML is typed in PageSpinner (which is what I also used back in 1998) on a PowerBook G3 running MacOS 9. The website is previewed on Netscape Communicator 4.7 (if it doesn't look right there, it won't look right anywhere!) Where there are tables, I've used Claris Home Page 2.0 to edit them, since manually editing HTML tables is a PITA.
The website is hosted on my home Synology NAS, which shares the web root over AppleTalk (via netatalk) on my LAN, so I mount it directly in the Finder on my PowerBook and edit it "live". Netatalk is great at preserving classic MacOS metadata such as finder display flags and resource forks.