otherPrefixes(value, prefix) {
    for (let other of Browsers.prefixes()) {
      if (other === prefix) {
        continue
      }
      if (value.includes(other)) {
        return value.replace(/var\([^)]+\)/, '').includes(other)
      }
    }
    return false
  }
Check `value`, that it contain other prefixes, rather than `prefix`