body {
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    url('/images/background/spring/2.jpg'),
    url('/images/background/spring/3.jpg'),
    url('/images/background/spring/4.jpg'),
    url('/images/background/spring/5.jpg'),
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    url('/images/background/spring/grand_teton_national_park_green_meadow_wyoming_landscape_3840x2400-min.jpg'),
    url('/images/background/spring/mohammad-amiri-EQMS0dBgNE0-unsplash-min.jpg'),
    url('/images/background/spring/peyto_lake_mountains_turquoise_evening_sunset_canada_3840x2400_45-min.jpg'),
    url('/images/background/spring/ramin-alizadeh-eXnplP434Rs-unsplash-min.jpg');
}