Quanta+ is a web development environment for HTML and associate languages. We are working to make it as full featured as any web tool available and a first choice for professional and recreational Linux web develoment.
CSSTidy is a program that optimises, formats and fixes CSS code. It is both available as executeable file (written in C++) and as script for webpages (written in PHP). CSSTidy is currently maintained at: https://github.com/Cerdic/CSSTidy
1L is environment including IDE, form builder, interpreter and debuger (like 1C:Enterprise v7.7 http://www.1c.ru/eng/title.htm) for fast and easy development and execute accounting program. Qt 1L is developed in C++ using Qt4.
cssed is an scriptable and modular GTK2 CSS editor and syntax validator, written for the Linux platform, to help web developers to maintain and create CSS stylesheets for web publishing. There are versions of cssed for MacOsX and Win32, and BSD.