body {
  background-image: url('/images/background/winter/3.jpg'),
    url('/images/background/winter/4-min.jpg'),
    url('/images/background/winter/5-min.jpg'),
    url('/images/background/winter/6.jpg'),
    url('/images/background/winter/alireza-sahebi-t6SImskjn9Y-unsplash-min.jpg'),
    url('/images/background/winter/sara-pashakhanlou-EHQGzHDWYDc-unsplash.jpg'),
    url('/images/background/winter/1.jpg'),
    url('/images/background/winter/2.jpg');
}