A bookmarklet for testing your graceful degradation.

a bookmarklet for typographically obsessed web designers. It enables rapid checking of fonts and font styles directly in the browser without editing code and refreshing pages. 2.0’s killer feature is instant drag-and-drop font previewing right in the browser (Firefox 3.6+ only), in any document you’re currently viewing.

Enter the URL of any CSS file to view and modify its color spectrum