body {
  background-image: linear-gradient(to right, #00a8e4, #00509e, #00285f);
  color: white;
  overflow-x: hidden;
}

#header {
  --border-radius: 50%;
  background: white;
  border-bottom-left-radius: var(--border-radius);
  border-bottom-right-radius: var(--border-radius);
  width: 120%;
  position: relative;
  right: 10%;
}

.btn-map {
  background: #00aeef;
}

#btn-back {
  background-color: #6dcff6;
}