body {
  color: black;
  font-family: helvetica, sans-serif;
  margin: 0;
  padding: 0;
  background-image: url("photos/ic.png");
  background-size: cover;
  background-repeat: no-repeat;
  background-attachment: fixed;
  background-position: center;
}
h1, p {
  color: aliceblue !important;
}

#top-section { padding: 10px; margin: 0; }

#nav { text-align: center; padding: 10px; }

.nav-tab {
  border: none;
  font-size: 16px;
  color: black;
  background-color: #F4A460;
  font-family: sans-serif;
  padding: 12px 10px;
  cursor: pointer;
  margin: 4px;
}

.nav-tab:hover { background-color: orange; }

.back-link {
  display: inline-block;
  color: white;
  font-size: 14px;
  text-decoration: none;
  border: 2px solid white;
  padding: 4px 12px;
  letter-spacing: 2px;
  margin: 10px;
}

.back-link:hover { background: white; color: black; }