*{
	font-family: "Arial Black", Gadget, sans-serif;
	}

body{
	background: -webkit-linear-gradient(#00AAAA, #FFF); 
	background: -o-linear-gradient(#00AAAA, #FFF); 
	background: -moz-linear-gradient(#00AAAA, #FFF); 
	background: linear-gradient(#00AAAA, #FFF);
	background-repeat: no-repeat;
	background-attachment: fixed;
}

#heading{
	display:flex;
	margin: auto;
    width: 60%;
	height:5%;
    padding: 10px;
	font-family: "Arial Black", Gadget, sans-serif;
	font-size:54px;
}
#nav{
	display:flex;
	margin: auto;
    width: 60%;
	height:5%;
    border-radius:1px;
    border-top-left-radius:2em;
	border-top-right-radius:2em;
	border:3px solid #D4E6E6;
    padding: 10px;
	background-color:#ECF1EF;
}
#wrapper{
	overflow: auto;
	margin: auto;
    width: 60%;
	height:65%;
    border-radius:1px;
	border:3px solid #D4E6E6;
    padding: 10px;
	background-color:#ECF1EF;
}

#footer{
	display:flex;
	margin: auto;
    width: 60%;
	height:5%;
    border-radius:1px;
	border:3px solid #D4E6E6;
    padding: 10px;
	background-color:#ECF1EF;
	font-family: "Arial Black", Gadget, sans-serif;
}

#wrapper::-webkit-scrollbar {
    width: 1em;
	border-radius: 20px;
	outline: 1px none;
}
 
#wrapper::-webkit-scrollbar-track {
    -webkit-box-shadow: inset 0 0 1px rgba(0,0,0,0.0);
	border-radius: 20px;
}
 
#wrapper::-webkit-scrollbar-thumb {
  background-color: darkgrey;
  outline: 1px none slategrey;
  border-radius: 20px;
}

.overlay {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(0, 0, 0, 0.7);
  transition: opacity 500ms;
  visibility: hidden;
  opacity: 0;
}
.overlay:target {
  visibility: visible;
  opacity: 1;
}

.popup {
  margin: 70px auto;
  padding: 20px;
  background: #fff;
  border-radius: 5px;
  width: 30%;
  position: relative;
  transition: all 5s ease-in-out;
}

.popup h2 {
  margin-top: 0;
  color: #333;
  font-family: Tahoma, Arial, sans-serif;
}
.popup .close {
  position: absolute;
  top: 20px;
  right: 30px;
  transition: all 200ms;
  font-size: 30px;
  font-weight: bold;
  text-decoration: none;
  color: #333;
}
.popup .close:hover {
  color: orange;
}
.popup .content {
  max-height: 30%;
  overflow: auto;
}