html, body {
    height: 100%;
}

body {
    display: flex;
    flex-direction: column;
    background-color: lightgrey;
}

    body .navbar-light .navbar-nav .nav-link.active,
    body .navbar-light .navbar-nav .nav-link:hover {
        border-bottom: 2px solid black;
        color: rgba(0, 0, 0, .9)
    }

.content {
    flex: 1;
}

.footer {
    flex-shrink: 0;
    padding: 20px 10px;
    background-color: gray;
}

    .footer small {
        color: black;
        font-size: 14px;
    }

    .footer a {
        color: black;
        text-decoration: none;
        display: inline-block;
    }

.navbar-light .navbar-toggler {
    border: solid 2px black;
    
}

#account {
    margin: 0 0 0 5px;
}
    #account a {
        display: block;
        align-content: center;
        padding: 5px;
        text-decoration: none;
        color: black;
        margin: auto;
        border: solid 2px black;
    }
    #account a:hover {
    color: black;
    border: 2px solid black;
    background-color: grey;
}

header.container-fluid {
    padding: 0px;
}

td h4 {
    border-bottom: 2px dotted Black;
}

@media (max-width: 767px) {
    #account {
        margin: 5px 0;
    }

    body .navbar-light .navbar-nav .nav-link {
        width: 95%;
        margin: auto;
    }
}