.thumb {
    margin-bottom: 30px;
}

#target {
	background-color: #ccc;
	width: 500px;
	height: 330px;
	font-size: 24px;
	display: block;
}

.box-expand-content {
  display: none; 
  cursor: pointer;
}

.link-expand-content .minus {
  display: none; }

.open.link-expand-content .minus {
  display: inline; }

.open.link-expand-content .more {
  display: none; }
  
  .dropdown.open .fa-angle-down:before {
  /* content: "\f106"; */ }
  
  .fa-angle-down:before {
  content: "\f107"; }