main {
    min-height: 100vh;
    background: linear-gradient(black, rgba(0, 0, 0, 0.702)),
                url(../img/background.jpg);
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;

    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.manila {
    width: 500px;
    animation: circulation 5s linear;
}

.sbiz {
    width: 500px;
    background: linear-gradient(rgba(255, 255, 255, 0.106), rgba(255, 255, 255, 0.106));
    border-radius: 25px;
    padding: 15px;
    animation: fromBottom 4s linear;
}



@keyframes circulation {
    0% {
        opacity: 0;
        transform: rotateY(180deg);
        
    }


    100% {
        opacity: 1;
        transform: rotateY(0deg);
    }
}

@keyframes fromBottom {
    0% {
        opacity: 0;
        transform: translateY(400px);
    }


    100% {
        opacity: 1;
        transform: translateY(0px);
    }

}