nav ul {
list-style-type: none;
margin: 0;
padding: 0;
overflow: hidden;
background-color: #333;
}
nav li {
float: left;
}
nav li a {
display: block;
color: white;
text-align: center;
padding: 14px 16px;
text-decoration: none;
}
nav li a:hover {
background-color: #111;
}