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

have you tried less.js ? you can write css code in an object oriented manner, also you can use this framework either on client side or server side, below a demonstration on your case:

/* you can write you desired css as follows */
body {
  &input {
        margin: 0;
  }
  background:white;
}

and it will be automatically compiled into:

body, input {
    margin:0;
}

body {
    background:white;
}