.node {
      width: calc(100% - 10px);
      height: 24px;
      line-height: 30px;
      margin-left: 5px;
      clear: both;
      cursor: pointer;
    }
    .node:hover {
      background-color: #eeeeee;
    }
    .node img {
      float: left;
      margin-left: 5px;
      margin-top: 6px;
      cursor: pointer;
    }
    .node label {
      float: left;
      line-height: 24px;
      margin-left: 5px;
      color: block;
      cursor: pointer;
    }
    .node-items {
      width: calc(100% - 10px);
      clear: both;
      display: none;
    }