@media screen and (max-width: 768px) {
    .border-left-mobile {
        border-left: 1px solid;
    }
    .border-top-mobile {
        border-top: 1px solid;
    }
    .border-right-mobile {
        border-right: 1px solid;
    }
    .border-bottom-mobile {
        border-bottom: 1px solid;
    }
    .center-mobile {
        text-align: center;
    }
}

@media screen and (min-width: 768px) {
    .border-left-desktop {
        border-left: 1px solid;
    }
    .border-top-desktop {
        border-top: 1px solid;
    }
    .border-right-desktop {
        border-right: 1px solid;
    }
    .border-bottom-desktop {
        border-bottom: 1px solid;
    }
}