body {
  background-color: #000099;
  margin: 0;
  padding: 0;
  font-family: "Open Sans", "Helvetica Neue", "Helvetica", "Arial", "sans-serif";
}
p {
  background-color: white;
  height: auto;
  width: 400px;
  text-align: Center;
  border-style: solid;
  border-width: 3px;
}
div {
  background-color: white;
  border-style: solid;
  border-width: 5px;
  border-color: black;
  height: 600px;
  width: 800px;
}
ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    overflow: hidden;
    background-color: #333;
}

li {
    float: left;
}

li a {
    display: block;
    color: white;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
}
li a:hover {
    background-color: #ffffff;
    color: #000000;
}
.active {
    background-color: #3333ff;
    color: #000000;
}