body {
    background-color: #212529 !important;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

p.foot-copyright{
    font-family: maxwell, helvetica, sans-serif;
    text-align: center;
    font-size: small;
    color: darkgrey;
}

#btn-back-to-top {
    position: fixed;
    bottom: 110px;
    right: 30px;
    display: none;
    background-color: #801d20;
    color: white;
    z-index: 11;
}

footer {
    margin-top: auto;
}