Feature Showcase - Preview Cascading Style Sheets
Use Komodo’s browser preview to view the effects of CSS changes as you edit.
Open a CSS file.
Set the web and browser preference to Preview in Komodo tab, other tab group.
Select View > Browser Preview, specify an HTML file which uses the CSS file, and click Preview.
The preview displays the CSS file via the specified HTML file. Alter the CSS file. When the changes are saved, the preview is automatically updated.