styles.css

* {
  margin: 0;
  padding: 0;
}

div.content {
  text-indent: 1px;
  margin: 1rem;
}

h3 {
}

body {
  font-family: Arial, Helvetica, sans-serif;
  background-color: #797983;
}

.navbar {
  overflow: hidden;
  background-color: #333;
}

.navbar a {
  float: left;
  font-size: 16px;
  color: #f4f4f6;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
}

.dropdown {
  float: left;
  overflow: hidden;
}

.dropdown .dropbtn {
  font-size: 16px;
  border: none;
  outline: none;
  color: #f4f4f6;
  padding: 14px 16px;
  background-color: inherit;
  font-family: inherit;
  margin: 0;
}

.navbar a:hover,
.dropdown:hover .dropbtn {
  background-color: #66666e;
}

.navbar a:hover,
.dropdown:hover .inactive {
  background-color: inherit;
}

.dropdown-content {
  display: none;
  position: absolute;
  background-color: #333;
  min-width: 160px;
  box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
  z-index: 1;
}

.dropdown-content a {
  float: none;
  color: #f4f4f6;
  padding: 12px 16px;
  text-decoration: none;
  display: block;
  text-align: left;
}

.dropdown-content a:hover {
  background-color: #66666e;
}

.dropdown:hover .dropdown-content {
  display: block;
}

.inactive {
  background-color: #333;
}

.navbar a.active {
  background-color: #04aa6d;
}