static save(prefixes, decl) {
    let prop = decl.prop
    let result = []

    for (let prefix in decl._autoprefixerValues) {
      let value = decl._autoprefixerValues[prefix]

      if (value === decl.value) {
        continue
      }

      let item
      let propPrefix = vendor.prefix(prop)

      if (propPrefix === '-pie-') {
        continue
      }

      if (propPrefix === prefix) {
        item = decl.value = value
        result.push(item)
        continue
      }

      let prefixed = prefixes.prefixed(prop, prefix)
      let rule = decl.parent

      if (!rule.every(i => i.prop !== prefixed)) {
        result.push(item)
        continue
      }

      let trimmed = value.replace(/\s+/, ' ')
      let already = rule.some(
        i => i.prop === decl.prop && i.value.replace(/\s+/, ' ') === trimmed
      )

      if (already) {
        result.push(item)
        continue
      }

      let cloned = this.clone(decl, { value })
      item = decl.parent.insertBefore(decl, cloned)

      result.push(item)
    }

    return result
  }
Clone decl for each prefixed values