main.css

header {
    background-color: #06283D;
    position: sticky;
    top: 0;
    left: 0;
    z-index: 1;
}

footer {
    padding: 1rem;
    margin-top: 5rem;
    background-color: #06283D;
}

footer p {
    color: #fff;
}

.navbar-toggler {
    background-color: #fff;
}

body {
    background-color: #256D85;
}

.container {
    padding-top: 2rem;
}

h2,
hr {
    color: #DFF6FF;
}

hr {
    padding-bottom: 2rem;
}

.navbar-nav .nav-link.active {
    color: #fff;
}

.nav-link {
    text-align: center;
}

.ico-warn {
    width: 52px;
}

.card img {
    height: 250px;
}

@media screen and (min-width:768px) {
    #carousel img {
        height: 20vh;
    }
}

@media screen and (min-width:1023px) {
    #carousel img {
        height: 30vh;
    }
    .card img {
        height: 350px;
    }
}