
BlueGriffon
An HTML editor based on Mozilla rendering engine. Supports some CSS3 features and since recently has a built-in SVG editor.
Balthisar Cascade cascading style sheet editor will make learning and producing CSS easy!.
Balthisar Cascade creates and edits Cascading Style Sheets, Level 2 on the Windows platform. Cascade presents the CSS level 2 attributes and their values to you in a logical arrangement. You can choose which attributes to modify and specify their values. Cascade project documents are then exported for use with your HTML or XML files on the internet, company intranets, or local computer documents.