Click any thumbnail to view a fullsize version in a popup window.
It all happens in one window, although StylePad presents simple dialogs to let you choose numeric values, fonts, colors, URLs and advanced filters. Selectors and their properties are shown at the top of the window. To add a new property, or change the value of an existing property, just double-click items in the lists below. The preview will instantly update to show the result.
StylePad includes simple CSS validation: click the Validate button and a straightforward dialog will show you the properties containing errors. Just double-click an error to jump straight to it and correct it.