You could have downloaded Class Checker X 1.0 for Mac from our software library for free. The software lies within System Tools, more precisely Fonts.
From the developer:
Class Checker 1.0 is a simple utility to scan for nested tags containing 'class' attributes. Nested tags can result in inconsistent font display, especially when using percentages in your cascading style sheets. Just drag a folder on to Class Checker and all files and folders within it (files to be scanned must end in .htm or .html) will be checked & reported in a new text document (opens after script has run).
You may want to check out more Mac applications, such as Science Class - Major In Theory, Computer Studies Class or First Class Flurry, which might be related to Class Checker X.
System Optimization