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

li {
    float: left;
}

li a {
	 display: block; 
    color: blue; 
    text-align: center;
    padding: 10px 12px;
    text-decoration: none;
}

li a.active {
  color: white;
  background-color: #4CAF50;
}

li a:hover {
    background-color: lightgrey;
    color: black; /* tekst farve - aktiveret menu*/
}