body {
    background: #000000;
    color: #999999;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
}

footer {
    text-align: center;
    line-height: 3em;
    font-weight: bolder;
    user-select: none;
}

.table {
    color: #999999 !important;
}

img {
    object-fit: cover;
}

ul {
    margin: 0;
}

.bg-steel {
    background-color: yellow;
}

header .navbar-nav .nav-link {
    color: #000000;
    font-weight: bold;
}

header .navbar-nav .nav-link:hover {
    font-weight: bolder;
}

.navbar-dark .navbar-brand {
    color: #000;
}

a {
    color: #999999;
    text-decoration: none;
    background-color: transparent;
    -webkit-text-decoration-skip: objects;
}

.content-section {
    background: #ffffff;
    padding: 10px 20px;
    border: 1px solid #dddddd;
    border-radius: 3px;
    margin-bottom: 20px;
}

.nav-current-directory {
    background-color: #007bff !important;
}

.btn-group-sm > .btn,
.btn-xs {
    padding: 0.1rem 0.55rem;
    font-size: 0.8rem;
    line-height: 1.9;
    border-radius: 0.2rem;
}