Amaya is an HTML editor which supports W3C standards and can edit HTML4 documents. It is a freeware HTML editing application that's well-designed.
Here are some screenshots to illustrate the features and user interface of this application:
HTML and CSS code editor. Screenshot of Amaya - 1030px · 949pxHTML editor tool which supports CSS, SVG and MathML. Screenshot of Amaya - 1030px · 949pxAmaya: User interface. Screenshot of Amaya - 1030px · 949pxScreenshot of Amaya - Size: 1030px · 949pxScreenshot of Amaya - Size: 1030px · 949px