ul {
	list-style-type: none; 
	margin: 0px;
	padding: 0px;
	overflow: hidden;
	background-color: #333333;
	text-decoration: none;
}

li {
	float: left;
}

li a {
	display: block;
	color: white;
	text-align: center;
	padding: 5px;
	text-decoration: none;
}

li a:hover:not(.active) {
	background-color: #111111;
}

.main {
	width: 100%;
	margin-bottom: 35px;
	display: inline-block;
}

.nav {
	margin-bottom: 0%;
	position: sticky;
	position: -webkit-sticky;
	top: 0;
}

.page {
	height: auto;
	margin-top: 2px;
}

.page-info {
	height: auto;
	width: 100%;
	margin-top: 2px;
}

.image {
	display: flex;
	justify-content: center;
}

.bg-div {
	background-image: url("images/background-image.png");
	background-size: contain;
	width: 100%;
	height: 25%;
}

.hidden {
  visibility: none;
}

.instructions {
	display: block;
    background-color: rgb(250, 250, 250);
    margin-left: auto;
    margin-right: auto;
    width: 65%;
    text-align: center;
    border-radius: 3px;
    border: 1px solid rgb(204, 204, 204);
    box-shadow: 0px 1px 4px 0px rgb(204, 204, 204);
}

.inline-instructions{
	background-color: rgb(250, 250, 250);
	text-align: center;
    border-radius: 3px;
    border: 1px solid rgb(204, 204, 204);
    box-shadow: 0px 1px 4px 0px rgb(204, 204, 204);
}

.instructions > * {
    width: 34rem;
    margin-left: auto;
    margin-right: auto;
}

.center {
	display: block;
  	margin-left: auto;
  	margin-right: auto;
  	width: 50%;
}

.center-noncode {
	display: block;
	margin-left: auto;
  	margin-right: auto;
  	width: 33%;
  	text-align: center;
}

.right {
	float: left;
	margin: auto;
	vertical-align: top;
}

@media screen and (max-width: 600px) {
	.col-25, .col-75, input[type=submit] {
    width: 100%;
    margin-top: 0;
  }
}

div.gallery {
  border: 1px solid #ccc;
}

div.gallery:hover {
  border: 1px solid #777;
}

div.gallery img {
  width: 100%;
  height: 20%;
}

div.desc {
  padding: 15px;
  text-align: center;
}

* {
  box-sizing: border-box;
}

.responsive {
  font-size: 20;
  padding: 0 6px;
  float: left;
  width: 100%;
  border: 2px solid black;
}

.img-centered {
	display: block;
  	margin-left: auto;
  	margin-right: auto;
  	width: 70%;
}

.img-centered-width {
	display: block;
  	margin-left: auto;
  	margin-right: auto;
  	width: auto%;
}

.responsive-centered {
	vertical-align: top;
}

@media only screen and (max-width: 700px) {
  .responsive {
    width: 100%;
    margin: 6px 0;
  }
}

@media only screen and (max-width: 500px) {
  .responsive {
    width: 100%;
  }
}

.clearfix:after {
  content: "";
  display: table;
  clear: both;
}

* {
  box-sizing: border-box;
}

.col-25 {
  float: left;
  width: 20%;
  margin-top: 10px;
}

.col-75 {
  float: left;
  width: 75%;
  margin-top: 10px;
}

input[type=text], select, textarea {
  width: 100%;
}

input[type=submit] {
  float: right;
}

input[type=submit]:hover {
  background-color: #45a049;
}

.container {
  border-radius: 5px;
  background-color: #f2f2f2;
  padding: 20px;
}

.row:after {
  content: "";
  display: table;
  clear: both;
}