A bit more stable than Sublime, I've found but more complicated settings.
The best ide ever. Intelligent prediction and code completion. Also has a nice debug feature!
Dreamweaver is a good IDE for Web Develpment. It has features to add its own bits of code to make things. I use Komodo Edit, but there are others out there. Its a good and based of straight text. I get into my wordpress account from that, (or access any ftp) and a make edit and update the files live from that. You can get your desire framework and theme to easy set the css.source