YAML Builder : A tool for visual layout development of YAML based CSS layouts
NicEdit : WYSIWYG Content Editor, Inline Rich Text Application
Maqetta : Maqetta is an open source project that provides WYSIWYG visual authoring of HTML5 user interfaces. The Maqetta application itself is authored in HTML,...
emotion : emotion is a high performance, lightweight css-in-js library that supports both string and object based styles.
HyperTerm : A terminal built on web technologies : JS / HTML / CSS