html,
body {
    height: 100%;
    margin: 0;
    padding: 0;
    overflow: hidden;
}

/* Alert animations */
.alert-enter {
    animation: alertEnter 0.3s ease-out;
}

@keyframes alertEnter {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}