.navbar {
    overflow: hidden;
    background-color: #333;
    font-family: Arial, Helvetica, sans-serif;
}

.navbar a {
    float: left;
    font-size: 16px;
    color: white;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
}
.navbar :hover{
    background-color: #66c0ec;
}