ul#adm {
  padding-left: 100px;
  list-style: none;
}
ul#adm > li {
  padding: 20px 10px;
  margin-bottom: 10px;
  margin-right: 20px;
  border: 1px solid #CCC;
  position: relative;
}
ul#adm > li > .art-cnt-menu-admin-nv {
  position: absolute;
  width: 20px;
  height: 20px;
  top: 5px;
  right: 5px;
  cursor: pointer;
}
ul#adm > li > .art-cnt-menu-admin-nv::before {
  content: "";
  position: absolute;
  width: 14px;
  border-top: 2px solid #000;
  top: 50%;
  margin-top: -1px;
}
ul#adm > li > .art-cnt-menu-admin-nv::after {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  border-top: 2px solid #000;
  border-bottom: 2px solid #000;
  top: 3px;
  left: 3px;
  box-sizing: border-box;
}
ul#adm > li > .art-cnt-menu-admin-nv.open > div.art-menu-admin-nv {
  display: block;
}
ul#adm > li > .art-cnt-menu-admin-nv > div.art-menu-admin-nv {
  display: none;
  position: absolute;
  background: #FFFFFF;
  border: 1px solid #CCCCCC;
  margin-top: 8px;
  top: 100%;
  right: -20px;
  min-width: 150px;
  z-index: 96;
  font-size: 11px;
}