.backend-page .second-level,
.backend-page .third-level {
	display: none;
}
.backend-page .second-level {
	padding-left: 20px;
	position: relative;
}
.backend-page .third-level {
	padding-left: 60px;
}
.toggle {
	width: 16px;
  height: 16px;
  display: inline-block;
  zoom: 1;
  vertical-align: middle;
  margin-right: 4px;
	background: url('/modules/contrib/term_reference_tree/images/bullet_toggle_plus.png')no-repeat;
}
.backend-page .first-level .toggle {
	position: absolute;
	top: 0;
	left: 0;
}
.toggle.open {
	background: url('/modules/contrib/term_reference_tree/images/bullet_toggle_minus.png')no-repeat;	
}
.first-level {
	position: relative;
	padding-left: 20px;
}
.first-level:after {
	content:'';
	display:inline-block;
	height: 16px;
	width: 16px;
	z-index: -1;
	background: #ddd;
	position: absolute;
	top:0;
	left: 0;
}