html {
  background-color: #ffffff;
  font-size: 10px;
  font-family: "PT Sans", sans-serif;
  font-weight: 700;
  font-style: normal;
}
nav {
  list-style-type: disc;
  margin: 0;
  padding: 0;
  overflow: hidden;
  background-color: #666699;
}
ul li {
  float: left;
}
ul li a {
  display: block;
  color: #e3e3e8;
  text-align: center;
  padding: 14px 16px;
}
ul li a:hover {
  background-color: #57578a;
}

.box {
  border: 5px solid #666699;
  background-color: #ffffcc;
}