body {
  background-color: black;
  color: white;
}


ul {
  list-style-type: none;
  margin: 150;
  border: 1px solid #FFFFFF;
  padding: 0;
  overflow: hidden;
  background-color: red;
}

li {
  float: left;
  padding: 10px;
  border-right: 1px solid #FFFFFF;
}

li:hover {
  background-color: darkred;
}

li:last-child {
    border-right: none;
}

li a {
  display: block;
  color: white;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
}

/* Change the link color to #111 (black) on hover */
li a:hover {
  background-color: #111;
}

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

.header {
  padding: 60px;
  text-align: center;
  background: #1abc9c;
  color: white;
  font-size: 30px;
}

h1 {
  padding: 30px;
  text-align: left;
  color: white;
  font-size: 30px;
  margin-left: 130px;
  margin-right:130px;
  background-color: darkred;
  border-spacing: 0px;
}


body {
  margin-right: 1px;
  margin-left: 1px;
}

div {
  background-color: #FFFFFF;
  
}

form{
  text-align: center;
}

p {
  padding: 30px;
  font-size: 21px;
  margin-right: 160px;
  margin-left: 160px;
  background-color: red;
  border-spacing: 0px;
}



.sidenav {
  height: 100%; /* Full-height: remove this if you want "auto" height */
  width: 160px; /* Set the width of the sidebar */
  position: fixed; /* Fixed Sidebar (stay in place on scroll) */
  z-index: 1; /* Stay on top */
  top: 200; /* Stay at the top */
  left: 0;
  background-color: GREEN; /* Black */
  overflow-x: hidden; /* Disable horizontal scroll */
  padding-top: 20px;
}

/* The navigation menu links */
.sidenav a {
  padding: 6px 8px 6px 16px;
  text-decoration: none;
  font-size: 25px;
  color: #818181;
  display: block;
}

/* When you mouse over the navigation links, change their color */
.sidenav a:hover {
  color: #f1f1f1;
}

/* Style page content */
.main {
  margin-left: 160px; /* Same as the width of the sidebar */
  padding: 0px 10px;
}

/* On smaller screens, where height is less than 450px, change the style of the sidebar (less padding and a smaller font size) */
@media screen and (max-height: 450px) {
  .sidenav {padding-top: 15px;}
  .sidenav a {font-size: 18px;}
}