Ideas for easiest web page editing in OS 10.8

I used Netscape Composer (v. 7.0) for many years, as a web editor to produce and edit very simple web pages (without the need to program in html). Now I'm running system 10.8, on a new MacBook Pro (with retina display) and can no longer run the versions of Netscape with Composer. What do others recommend as a (preferably free) replacement for Composer?