I know there are some. None I have tried allowed me to load a page, display its HTML and CSS, make edits and save back to server. Is there any such available?

Normally it is easy enough to work locally and use any editor and view locally, or rare cases I have to work online, dl the page with ftp-program to editor and save up to server. Now I have though a project which relies deeply in PHP and local editing is not really possible, and finding right edit files/rows with ftp-downloaded pages/css is very slow testing.

Thus I would need a tool to view live pages, edit, and save up to server.