.checkbox-tree {
  margin-left: 0;
  padding: 0;

  ul {
    padding-left:20px;
  }
  ul.root {
    margin: 0;
    padding: 0;
  }
  li {
    list-style:none;
    clear: both;
  }
  label {
    display: inline-block;
    float: left;
    margin: 0 0 0 4px;
  }
  input {
    float: left;
  }
  ul.hide {
    display:none;
  }
  span {
    color:#999;
    cursor:default;
  }
  .expanded, .collapsed {
    cursor:pointer;
    float: left;
    margin: 1px 2px 0 0;
    -webkit-user-select:none;
    -moz-user-select:none;
    width: 16px;
  }
  .expanded:after {
    content: '\25BC';
    margin-left: -1px;
  }
  .collapsed:after {
    content: '\25B6';
  }
}