code: function toCSSProp(prop) {
    var dashed = prop.replace(regex, '-$&').toLowerCase();
    return dashed[0] === 'm' && dashed[1] === 's' ? '-' + dashed : dashed;
  }
docs: Converts a style object property name to its CSS property name equivalent,
  taking into account the exception of `-ms` vendor prefixes
  @param  {string} prop - Style object property name, e.g. `WebkitTransition`
  @return {string}      - CSS property name, e.g. `-webkit-transition`