@media(max-width:1023px) {
    .side {
        display: none;
    }

    .hei {
        height: 85vh;
    }

    .top {
        display: block;
    }

    form {
        max-width: 100%;
        max-height: 100%;
    }
}

@media(min-width:1024px) {
    .side {
        display: block;
    }

    .hei {
        height: 100vh;
    }

    .top {
        display: none;
    }
}