.dd {
  position: relative;
  display: block;
  margin: 0;
  padding: 0;
  list-style: none;
}
.dd-list {
  position: relative;
  display: block;
  margin: 0;
  padding: 0;
  list-style: none;
}
.dd-collapsed .dd-list {
  display: none;
}
html:not([dir="rtl"]) .dd-list .dd-list {
  padding-left: 2rem;
}
[dir="rtl"] .dd-list .dd-list {
  padding-right: 2rem;
}
.dd-item,
.dd-empty,
.dd-placeholder {
  position: relative;
  display: block;
  margin: 0;
  padding: 0;
}
.dd-handle,
.dd-content {
  display: block;
  margin: 0.3125rem 0;
  padding: 0.3125rem 0.75rem;
  text-decoration: none;
  cursor: unset;
}
.dd-handle + .dd-content {
  cursor: auto;
}
.dd-item > button {
  position: absolute;
  display: block;
  float: left;
  overflow: hidden;
  margin: 0.3125rem 0 0.3125rem 1px;
  padding: 0;
  width: 2rem;
  border: 0;
  background: transparent;
  text-align: center;
  text-indent: 100%;
  white-space: nowrap;
  font-weight: bold;
  font-size: 1rem;
  cursor: pointer;
}
.dd-item > button:before {
  content: "+";
  position: absolute;
  display: block;
  width: 100%;
  text-align: center;
  text-indent: 0;
}
.dd-item > button[data-action="collapse"]:before {
  content: "-";
}
html:not([dir="rtl"]) .dd-item > button ~ .dd-handle {
  padding-left: 2rem;
}
[dir="rtl"] .dd-item > button ~ .dd-handle {
  padding-right: 2rem;
}
.dd-placeholder,
.dd-empty {
  box-sizing: border-box;
  margin: 0.3125rem 0;
  padding: 0;
  border: 1px dashed #b6bcbf;
  background: #f2fbff;
}
.dd-empty {
  min-height: 6.25rem;
  border: 1px dashed #bbb;
}
.dd-dragel {
  position: absolute;
  z-index: 9999;
  pointer-events: none;
}
.dd-dragel > .dd-item .dd-handle {
  margin-top: 0;
}
.default-style .dd-handle,
.default-style .dd-content {
  border: 1px solid rgba(24, 28, 33, 0.1);
  border-radius: 0.25rem;
}
.default-style .dd-empty {
  background: rgba(24, 28, 33, 0.06);
}
.material-style .dd-handle,
.material-style .dd-content {
  border: 1px solid rgba(24, 28, 33, 0.1);
  border-radius: 0.125rem;
}
.material-style .dd-empty {
  background: rgba(24, 28, 33, 0.06);
}