.main{
        background-image: url(https://webcan2.kinkos-design.com/wp-content/uploads/2023/06/6c7d5ee8e5a98ce44012c51d36b5ee09.jpg);
    }

.main main {
    background: url(https://webcan2.kinkos-design.com/wp-content/uploads/2023/06/e72d5f53d8cdbc57d7cf326edc1c20a4.png) center top no-repeat;
}

.container{
        background: #e8f0fc;
    }
    
@media screen and (max-width: 768px) {
    .main{
        background-image: url(https://webcan2.kinkos-design.com/wp-content/uploads/2023/06/c231c7d39796bef975d4002a3301c843.jpg);
    }

.main main {
    background: url(https://webcan2.kinkos-design.com/wp-content/uploads/2023/06/396caa38c1c4564dc38317e82b64b1dd.png) center top no-repeat;
}

.container{
        background: #e8f0fc;
    }

}