ul {
  list-style-type: none;
  margin: 0;
  padding: 0;
  overflow: hidden;
  background-color: #333333;
}

li {
  float: left;
}

.menu a {
  display: block;
  color: rgba(245, 245, 245, 0.671);
  text-align: center;
  padding: 16px;
  text-decoration: none;
}

li a:hover {
  background-color: #11111170;
  color:white;
}
.guess {
    float: right;
    color:orange;
}
.guess a:hover {
    color:white;
    background-color:#333333;
}