The Development is done with eclipse and several plugins, so here is a practical Environment:
(At the time of writing Europe is the current release, use it)
Eclipse Webtools are consumable via the Eclipse 'Store'.
- Help > Software Updates > Find and Install ...
- Search for the Webtools, either Callisto or Europe release should have them, select them
- press "select required"
- from then it is easygoing
Can also consumed via the Eclipse 'Store'. Look for the required plugins, those are available via Callisto rsp. Europe.
Best one for CSS but brings a lotta other stuff with it. Check out, it's pretty interessting
This is my favorite assignment from filetype to editor
.php -> PDT
.xml -> Webtools XML Editor
.xsl -> Webtools XML Editor
.html -> Webtools XML Editor
.css -> Aptana CSS Editor
.js -> JSEclipse
Firefox is the best browser for webdevelopment along with some Extensions.