remove zero units

[tomhodgins]

.remove-zero-unit {
  max-height: 0%;
  height: 0%;
  font-size: calc(0%);
  transform: rotateZ(0deg);
}

correct minification

.remove-zero-unit{max-height:0;height:0;font-size:0;transform:rotate(0)}

• removes % and deg units where they can be safely eliminated

CSSnano output

.remove-zero-unit{max-height:0%;height:0%;font-size:0%;transform:rotate(0deg)}

• can remove unit from % on height and max-height properties
• can remove deg from 0deg
• can remove % if final simplification from calc is 0%