html,body { margin:0; padding:0;}
	.margin { margin:100px auto; border:1px solid #ccc; border-radius:4px; padding:20px; width:700px; font-weight:bold; font-size:16px; color:#333; font-family:Tahoma;}
	button.nest { background:#333; display:block; cursor:pointer; margin:40px 10px 10px; color:#fff; padding:4px 16px; border:none;}
	/**
 * Nestable
 */
.dd {
  position: relative;
  display: block;
  margin: 0;
  padding: 0;
  list-style: none;
}
.dd-list {
  display: block;
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
}
.dd-list .dd-list {
  padding-left: 30px;
}
.dd-collapsed .dd-list {
  display: none;
}
.dd-item,
.dd-empty,
.dd-placeholder {
  display: block;
  position: relative;
  margin: 0;
  padding: 0;
  min-height: 20px;
  font-size: 13px;
  line-height: 20px;
}
.dd-handle,
.dd-content {
  display: block;
  margin: 0px 0;
  padding: 5px 10px;
  background: #fafafa;
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
  border: 1px solid #ebebeb;
  -moz-transition: all 300ms ease-in-out;
  -o-transition: all 300ms ease-in-out;
  -webkit-transition: all 300ms ease-in-out;
  transition: all 300ms ease-in-out;
}
dd-content,
.dd-content:hover {
  background: #fff;
}
.dd-item > button {
  display: block;
  position: relative;
  cursor: pointer;
  float: left;
  width: 25px;
  height: 20px;
  margin: 5px 0;
  padding: 0;
  text-indent: 100%;
  white-space: nowrap;
  overflow: visible;
  border: 0;
  background: transparent;
  font-size: 12px;
  line-height: 1;
  text-align: center;
  font-weight: bold;
  margin-right: 10px;
  outline: 0;
}
.dd-item > button:after {
  content: '';
  display: block;
  position: absolute;
  right: 0px;
  top: -5px;
  bottom: -6px;
  width: 1px;
  background: #ebebeb;
}
.dd-item > button:before {
  content: '+';
  display: block;
  position: absolute;
  width: 100%;
  text-align: center;
  text-indent: 0;
}
.dd-item > button[data-action="collapse"]:before {
  content: '-';
}
.dd-placeholder,
.dd-empty {
  margin: 0px 0;
  padding: 0;
  min-height: 30px;
  background: rgba(245, 245, 246, 0.3);
  border: 1px dotted #ebebeb;
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
}
.dd-empty {
  border: 1px dashed #bbb;
  min-height: 100px;
  background-color: #e5e5e5;
}
.dd-dragel {
  position: absolute;
  pointer-events: none;
  z-index: 9999;
}
.dd-dragel > .dd-item .dd-handle,
.dd-dragel > .dd-item .dd-content {
  margin-top: 0;
}
.dd-dragel .dd-handle,
.dd-dragel .dd-content {
  -moz-box-shadow: 2px 4px 6px 0 rgba(0, 0, 0, 0.1);
  -webkit-box-shadow: 2px 4px 6px 0 rgba(0, 0, 0, 0.1);
  box-shadow: 2px 4px 6px 0 rgba(0, 0, 0, 0.1);
}
.nested-list.with-margins .dd-item .dd-handle,
.nested-list.with-margins .dd-item .dd-content {
  margin: 5px 0;
}
.nested-list.custom-drag-button .dd-handle {
  position: absolute !important;
  margin: 0 !important;
  width: 15px;
  height: 32px;
  padding-left: 5px;
  padding-right: 4px;
  cursor: pointer;
  padding-top: 7px;
  -moz-box-shadow: none;
  -webkit-box-shadow: none;
  box-shadow: none;
}
.nested-list.custom-drag-button .dd-handle span {
  display: block;
  line-height: 3px;
  color: rgba(115, 120, 129, 0.7);
}
.nested-list.custom-drag-button .dd-content {
  padding-left: 25px;
}
.nested-list.custom-drag-button button + .dd-handle {
  left: 24px;
}
.nested-list.custom-drag-button button + .dd-handle + .dd-content {
  padding-left: 50px;
}
.nested-list.custom-drag-button.drag-button-on-hover .dd-item > .dd-handle {
  -webkit-opacity: 0;
  -moz-opacity: 0;
  opacity: 0;
  filter: alpha(opacity=0);
}
.nested-list.custom-drag-button.drag-button-on-hover .dd-item:hover > .dd-handle {
  -webkit-opacity: 1;
  -moz-opacity: 1;
  opacity: 1;
  filter: alpha(opacity=100);
}
.custom-handler .dd-item .dd-handle {
  position: absolute !important;
  margin: 0 !important;
  width: 15px;
  height: 32px;
  padding-left: 5px;
  padding-right: 4px;
  cursor: pointer;
  padding-top: 7px;
  -moz-box-shadow: none;
  -webkit-box-shadow: none;
  box-shadow: none;
}
.custom-handler .dd-item .dd-handle span {
  display: block;
  line-height: 3px;
  color: rgba(115, 120, 129, 0.7);
}
.custom-handler .dd-item .dd-content {
  padding-left: 25px;
}
.custom-handler .dd-item button + .dd-handle {
  left: 24px;
}
.custom-handler .dd-item button + .dd-handle + .dd-content {
  padding-left: 50px;
}