{
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial;
}

header 
{
	width: 90%;
	margin: auto;
	text-align: left;
	font-size: xx-large;
	color: blueviolet;
	text-shadow: 0px 8px 8px brown;
	
}


footer 
{
	width: 50%;
	background-color: transparent;
	border: solid black 0px;
	margin: auto;
	margin-top: 20px;
	text-align: center;
}

section 
{
	width: 75%;
	margin: auto;
	border: solid blue 0px;
	
}

article 
{
	width: 70%;
	margin: auto;
	margin-top: 10px;
	background-color: transparent;
	padding: 10px 10px;
	text-align: center;
	
}


nav
{
	background-color: none;
	list-style-type: none;
	text-align: center;
	margin: 0;
	padding:0;
}



.nav li
{
	display: inline-block;
	font-size: 20px;
	padding: 20px;
}




/* The grid: Four equal columns that floats next to each other */
.column {
  float: left;
  width: 20%;
  padding: 10px;
}

/* Style the images inside the grid */
.column img {
  opacity: 0.8; 
  cursor: pointer; 
}

.column img:hover {
  opacity: 1;
}

/* Clear floats after the columns */
.row:after {
  content: "";
  display: table;
  clear: both;
}

/* The expanding image container */
.container {
  position: relative;
  display: none;
}

/* Expanding image text */
#imgtext {
  position: absolute;
  bottom: 15px;
  left: 15px;
  color: white;
  font-size: 20px;
}

/* Closable button inside the expanded image */
.closebtn {
  position: absolute;
  top: 10px;
  right: 15px;
  color: white;
  font-size: 35px;
  cursor: pointer;
}