body {
  margin: 0;
  font-family: 'Open Sans', sans-serif;
  background-color: white;
  color: black;
  text-align: center;

}

nav {
  background-color: lightskyblue;
  position: sticky;
  top: 0;
}

nav ul {
  list-style: none;
  display: flex;
  justify-content: space-around;
}

nav a {
  color: white;
  text-decoration: none;
  padding: 1em;
  transition: background 0.3s;
  border-radius: 50px;
}

nav a:hover {
  background-color: lightblue;
}

.hero img { 
 border-radius: 12px;
  width: 500px;
  height: 400px;
}