title: How to precisely test if CSS final computed values have changed anywhere on a page?
body: <p>I have a situation where I need to merge several classes manually.  They contain a huge amount of overrides within an 18,000 line CSS file.</p>
  
  <p>I started making some changes to the huge CSS file and I realize that CSS loads the last case of a property so I did this all very carefully.  For the most part things worked well.  But, I did find one icon that was wrong and one text link that was the wrong font.  So I thought, is there a way that I can compare the before and after state of this work precisely.  I don't mean visually.  But instead like two full text output files of the results of the computed CSS for the entire current page so I can run a compare on them in notepad++</p>
  
  <p>Sorry if this is an ignorant question as I am a self taught web novice.</p>