h3 {
    margin-top: 10px;
}

.btn {
    height 200px:
}

body {
  background-image: url("/static/images/black_grey_pattern.jpeg");
  background-repeat: no-repeat;
  background-attachment: fixed;
  background-position: center center;
  background-size: cover;
}


.nav-pills > li.nav-item > button.nav-link {
    color: black;
    font-weight: bold;
}

.nav-pills > li.nav-item > button.nav-link.active {
    background-color: #dc3545;
}