body {
    padding: 10px;
    padding-bottom: 50px;
    background-color: gainsboro;
}

a {
    text-decoration: none;
}

h1 {
    margin-bottom: 2000px;
}

.mobile-bottom-nav a {
    text-decoration: none;
}

.mobile-bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    will-change: transform;
    transform: translateZ(0);
    display: flex;
    height: 80px;
    box-shadow: 0 -2px 5px -2px #333;
    background-color: #fff;
}

.mobile-bottom-nav__item {
    flex-grow: 1;
    text-align: center;
    font-size: 12px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.mobile-bottom-nav__item--active {
    color: red;
}

.mobile-bottom-nav__item-content {
    display: flex;
    flex-direction: column;
}


.card-header {
    background-color: darkblue;
    margin: -16px;
    margin-bottom: 16px;
}

    .card-header a {
        color: #fff;
    }

.body-content {
    margin-bottom: 60px;
}

.card-body {
    padding-bottom: 0px;
}

.card-footer {
    background-color: #fff !important;
    padding: 0 !important;
    padding-top: 3px !important;
}