* {
  box-sizing: border-box;
}

.banner {
  height: 15rem;
  width: auto;
  display: flex;
  align-items: center;
  justify-content: center;
}

.clearfix::after {
  content: '';
  display: block;
  clear: both;
}

body {
  margin: 0;
  padding: 0;
}

.topnav nav {
  margin: 0rem;
  max-width: 100%;
  color: grey;
  font-family: Arial, Helvetica Neue, Helvetica, sans-serif;
}

.topnav nav ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.topnav nav ul li {
  display: inline;
}

.topnav nav ul li:last-child a {
  margin: 0;
}

.topnav nav ul li a {
  text-decoration: none;
  text-align: center;
  display: block;
  padding: 1.65rem;
  margin: 0 0 0 0;
  background-color: #000000;
  color: rgba(231, 231, 231, 0.78);
  font-family: 'Open Sans Condensed', sans-serif;
  font-size: 1.5rem;
  border-bottom: 2px solid #cae7b6;
}

.topnav nav ul li:last-child a {
  margin: 0;
}

.topnav nav ul li a:hover {
  border-bottom: 2px solid rgba(14, 137, 1, 0.98);
}
@media screen and (min-width: 35rem) {
  nav ul li a {
    width: 25%;
    float: left;
    margin-bottom: 1rem;
  }
}