body {
  background-color: #0c7360;
  color: white;
}

body a {
  color: white;
}

header {
  display: flex;

  border-bottom: double white;
}

footer {
  padding-bottom: 25px;
}

header h1 {
  width: auto;
  height: auto;
  color: white;
}

header nav {
  display: flex;
  justify-content: center;
  align-items: center;
}

.first-nav-item {
  margin-left: 50px;
}

.nav-item {
  padding-left: 50px;
  padding-right: 50px;
  height: 100%;
  border-left: solid thin white;
  border-right: solid thin white;
  color: white;
  text-decoration: none;
}

.nav-item:hover {
  background-color: #40b7a4;
  color: black;
}

ul {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  text-align: center;
}

ul a {
  width: 500px;
  height: 200px;
  margin: 10px;
  padding: 0px;
}