style.css

body
{
    background-image: -moz-radial-gradient(#1a9951, #276141);
}


/*Background color for navigationbar*/
.nav {
  background-color: #333;
  overflow: hidden;
  display: inline-block;
  list-style-type:none; 
  margin:0; 
  margin-left:35%; 
  padding:0;
  text-align:center; 
  font-size:20px;
}

/* Properties for navigationbar links */
.nav a {
  float: left;
  color: #f2f2f2;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
  font-size: 17px;
}

/* Hover color change*/
.nav a:hover {
  background-color: #ddd;
  color: black;
}

a.top:hover /*new menu*/
{
    background-color:#ddd;
    color: black;
}

/* Add a color to the active/current link */
a.active {
  background-color: #4CAF50;
  color: white;
}

footer {
  border-top: 5px solid #4CAF50;
}