.main{
    background-image: url(images/gondwana1.jpg);
    animation:   change 10s infinite ease-in-out;
}
@keyframes change{
    0%
    {
        background-image: url(https://i.im.ge/2024/07/29/VnqXfS.gondwana1.jpeg);
    }
    20%
    {
        background-image: url(https://i.im.ge/2024/07/29/VndHVW.gondwana2.jpeg);
    }
    40%
    {
        background-image: url(https://i.im.ge/2024/07/29/Vndngc.gondwana3.jpeg);
    }
    60%
    {
        background-image: url(https://i.im.ge/2024/07/29/Vndvr0.gondwana4.jpeg);
    }
    80%
    {
        background-image: url(https://i.im.ge/2024/07/29/VndJ5T.gondwana5.jpeg);
    }
    100%
    {
        background-image: url(https://i.im.ge/2024/07/29/VndGDG.gondwana6.jpeg);
    }
}