#mainNav {
  background-color: #05102d!important;
}

.center {
  max-width: 1200px;
  margin: 0px auto;
}

.link_klein:hover {
  color: #fa8818;
}

a:hover {
  text-decoration: underline;
}

.link_klein {
  font-size: 0.75em;
  color: #fff;
}

@media (max-width: 576px) {
  .linie_mobile {
    margin-left: 10px;
    margin-right: 10px;
    width: auto;
  }
}