body {
  background-image: url('/images/background/spring/5.jpg'),
    url('/images/background/spring/6.jpg'),
    url('/images/background/spring/7.jpg'),
    url('/images/background/spring/1.jpg'),
    url('/images/background/spring/2.jpg'),
    url('/images/background/spring/3.jpg'),
    url('/images/background/spring/4.jpg');
}