.burst {
  align-items: center;
  background: rgba(20, 80, 130, .75);
  display: flex;
  flex-direction: column;
  height: 90px;
  position: absolute;
  top: 0;
  width: 100%;
  z-index: 1;
}

.hidden {
  display: none;
}

.burst > a {
  border-bottom: 1px solid #fff;
  color: #fff;
  margin-top: 12px;
  text-decoration: none;
}

.burst > a:hover {
  border-bottom: 1px solid #ddd;
  color: #ddd;
}

.burst > close {
  color: #fff;
  cursor: pointer;
  font-size: 40px;
  position: absolute;
  right: 30px;
  top: 20px;
}

.burst > close:hover {
  color: #ddd;
}

@media screen and (max-width: 600px) {
  .burst > close {
    right: 50%;
    top: 122px;
    transform: translateX(14px);
  }
  .burst > a {
    border-bottom: none;
    text-decoration: underline;
    text-align: center;
    width: 90%;
  }
  .burst > a:hover {
    border-bottom: none;
    color: #ddd;
  }
  .burst {
    padding-bottom: 90px;
  }
}