.jumbotron {
	border-radius: 0 0 4px 4px;
}
pre {
	padding: 20px;
	background: #e9ecef;
	border-radius: 4px;
}
.list-group {
	position: sticky;
	top: 30px;
}
.list-group-item {
	transition: 0.4s;
}