header {
    position: sticky;
    z-index: 1000;
      top: 0;
}

::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background-color: black;
    border-radius: 4px;
    border: 2px solid #f1f1f1;
}

::-webkit-scrollbar-thumb:hover {
    background-color: black;
}

.bd-footer {
background-color:#212529;
color: #7d7575;
margin:0px;
padding:50px
}

.bd-footer a {
    color: #7d7575;
    text-decoration: none;
}

.bd-footer a:hover, .bd-footer a:focus {
    color: var(--bs-link-hover-color);
    text-decoration: underline;
}