nav {
    border: 1px solid red !important;
}
main.main.mobile-main {
    border-top: 1px solid #e8e8e8;
}
section#section-1 {
    min-height: 95vh;
}
#section-1 > div > div {
        display: flex;
    justify-content: center;
    align-items: center;
}