@import url('https://fonts.googleapis.com/css?family=Roboto&display=swap');
@import url('https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css');
*{ margin: 0; padding: 0;}

 
@media only screen and (min-width: 720px){
    main{
    
      margin-left: auto;
      margin-right: auto; 
      padding: 5px;
    }
}

.set-overlayer,
.set-glass,
.set-sticky {
	cursor: pointer;
	height: 45px;
	line-height: 45px;
	padding: 0 15px;
	color: #333;
	font-size: 16px;
}
.set-overlayer:after,
.set-glass:after,
.to-active:after,
.set-sticky:after {
	font-family: FontAwesome;
	font-size: 18pt;
	position: relative;
	float: right;
}
.set-overlayer:after,
.set-glass:after,
.set-sticky:after {
	content: "\f204";
	transition: .6s;
}

.to-active:after {
	content: "\f205";
	color: #008080;
	transition: .6s;
}
.set-overlayer,
.set-glass,
.set-sticky,
.source,
.theme-tray {
	margin: 10px;
	background: #f2f2f2;
	border-radius: 5px;
	border: 2px solid #f1f1f1;
	box-sizing: border-box;
}
/* Syntax Highlighter*/

pre.prettyprint {
	padding: 15px !important;
   margin: 10px;
	border: 0 !important;
  background: #f2f2f2;
  overflow: auto;
}

.source {
	white-space: pre;
	overflow: auto;
	max-height: 400px;
}
code{
    border:1px solid #ddd;
    padding: 2px;
    border-radius: 2px;
}