body {margin:0;}

.navbar {
  overflow: hidden;
  background-color: black;
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
}

.navbar a {
  float: right;
  display: block;
  color: white;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
  font-size: 17px;
}

.navbar a:hover {
  background: grey;
  color: black;
}

.main {
  padding: 16px;
  margin-top: 30px;
  text-align: justify;
  /* Used in this example to enable scrolling */
}

.footer {
   position: fixed;
   left: 0;
   bottom: 0;
   width: 100%;
   background-color: black;
   color: white;
   text-align: center;
   font-size: small;
}