#toc_wrapper {
    /* display: flex; */
    flex-wrap: wrap;
    align-items: flex-start;
    box-sizing: border-box;
  }
  
  .box_cts {
    box-sizing: border-box;        
  }
  .toc_list {
    position: relative;
    height: auto;
    max-height: 150px;
    overflow: hidden;
    transition: max-height 1s;
  }
  .toc_list::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
    display: block;
    width: 100%;
    height: 100%;
    transition: 1s;
    background: linear-gradient(to bottom, transparent 0%, #ffffff 100%);
  }
  .toc_list.open:after {
    z-index: -1;
    opacity: 0;
  }
  
  #toc_container .toc_more {
    display: block;
    margin: 0 auto;
    padding: 4px 40px;
    border: 0;
    border-radius: 12px;
    color: #ffffff;
    font-weight: bold;
    background-color: #d3b4c2;
    cursor: pointer;
}