In linux there are 3 regular programs used for web editing: Screem, Bluefish (based on Gnome) and Quanta Plus (based on KDE).
If you use Gnome then you should use Screem.It is fast, simple and very powerful, just need to install libraries.Unlike most other websites / SCREEM HTML editors do not provide a WYSIWYG display and Screeem does not have everything you want.