.main-header {
  display: flex;
  flex-direction: column;
  justify-content: center;
  height: 151px;
  background-color: rgba(0, 51, 153, 0);
  color: #ffffff;
}

.main-header ul {
  list-style-type: none;
}

.main-header a:link {
  color: #ffffff;
  font-weight: normal;
}

.main-header a:visited {
  color: #ffffff;
}