.table_of_contents {
  position: sticky;
  float: left;
  
  top: 3em;
  
  width: 20em;
  
  & a {
    display: inline-block;
    
    transition: all 0.5s !important;
    
    line-height: 1em;
    text-align: justify;
    font-size: 0.9rem;
    
    padding-left: 0.2em;
    padding-right: 0.2em;
    padding-bottom: 0.2em;
    
    border-radius: 0.2em;
  }
  
  & .active {
    background-color: var(--highlight_1);
    color: var(--bg_1);
  }
  
  & ol {
    padding-left: 0.5em;
    
    list-style: none;
    
    border-left: 1px solid #FFFFFF44;
  }
  
  & li {
    margin-bottom: 0.2em;
  }
}