.btn-light,
.btn-light:hover,
.btn-light:focus {
    color: #333;
    text-shadow: none;
}

body {
    background-image: url('32630909-35aa-4364-bf7f-31dc56e1c3d3.jpg'); 
    background-size: cover;
    background-position: center;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    text-shadow: 0 .05rem .1rem rgba(0, 0, 0, .5);
    box-shadow: inset 0 0 5rem rgba(0, 0, 0, .5);
}

.cover-container {
    max-width: 42em;
}


.nav-masthead .nav-link {
    color: rgba(255, 255, 255, .5);
    border-bottom: .25rem solid transparent;
}

.nav-masthead .nav-link:hover,
.nav-masthead .nav-link:focus {
    border-bottom-color: rgba(255, 255, 255, .25);
}

.nav-masthead .nav-link + .nav-link {
    margin-left: 1rem;
}

.nav-masthead .active {
    color: #fff;
    border-bottom-color: #fff;
}

main {
    background-color: rgba(0, 0, 0, 0.5);
    padding: 20px;
    border-radius: 10px;
}