Is there an advanced CSS minifier/compiler that does things like strip redundancy and comma separate identical rules?

Question

For example

input{margin:0}body{margin:0;background:white}

would be shorter written like this

input,body{margin:0}body{back         


        

Answer 1

If you use visual studio, you could install the Web Essentials extension. It has experimental support for cleaning and merging CSS rules, but not exactly like you subscribed. It, for one, creates more whitespace, but it does combine css tags, that have (partially) equal styles eg..