html {
    background-image: url("../images/fog.jpg");
    background-size: cover;
}

body {
    max-width: 800px;
    margin: auto;
    background-color: rgba(250,250,250,0.5);

    padding-bottom: 50px;

}

#main-nav {
    width: 100%;
    background-color: rgba(15, 52, 18, 0.89);
}

.navbar-nav {
    margin: auto;
}
.nav-item {
    margin: auto;
    text-transform: uppercase;
}

.card {
    border: 2px solid #2a661b;
    box-shadow: 2px 2px 4px black;
    margin-top: 2rem;
    min-height: 21rem;
}

.card-title {
    color: rgba(15, 52, 18, 0.89);
    font-weight: bold;
}

.card-img-top {
    position: relative;
    float: left;
    height: 100px;
    background-position: 50% 50%;
    background-repeat:   no-repeat;
    background-size:     cover;
}

.card-body {
    padding: 0 0.5rem 0.5rem 0;
}

.card-title {
    padding-top: 1rem;
    padding-left: 1rem;
    padding-bottom: 0.5rem;
}

hr {
    margin: 0;
}

a:hover, a:active {
    text-decoration-color: rgba(15, 52, 18, 0.89);
}

.card-deck {
    display: flex;
    margin: auto;
}