details {
    margin: 5px;
    position: absolute;
    z-index: 9999;
  }

  summary {
    writing-mode: vertical-lr;
    text-align: center;
    padding: 12px 10px;
    width: 23px;
    height: 17px;
    background-color: var(--primColor);
    border-radius: var(--cornerRad);
    color: var(--secoColor);
    cursor: pointer;
    user-select: none;
    outline: none;
    transition: transform 200ms ease-in-out 0s;
  }
  summary::before,
  summary::after {
    position: static;
    top: 0;
    left: 0;
  }
  summary::before {
    content: "";
  }
  summary::after {
    content: "III";
    letter-spacing: -1px;
  }
  summary:hover {
    transform: scale(1.1);
  }
  summary::marker {
    font-size: 0;
  }
  summary::-webkit-details-marker {
    display: none;
  }
  details[open] .menu {
    animation-name: menuAnim;
  }
  details[open] summary::before {
    content: "X";
  }
  details[open] summary::after {
    content: "";
  }
  .menu {
    height: 0;
    width: fit-content;
    border-radius: var(--cornerRad);
    background-color: #fff;
    box-shadow: 0 4px 12px 0 rgba(0, 0, 0, 0.2);
    margin-top: 8px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    overflow: hidden;
    animation: closeMenu 300ms ease-in-out forwards;
    z-index: 9999;
  }
  .menu a {
    padding: 12px 24px;
    margin: 0 16px;
    color: var(--secoColor);
    border-bottom: 2px solid rgba(0, 0, 0, 0.1);
    text-decoration: none;
    text-align: center;
    transition: filter 200ms linear 0s;
  }
  .menu a:nth-of-type(1) {
    padding-top: 24px;
  }
  .menu a:nth-last-of-type(1) {
    border-bottom: none;
  }
  .menu a:hover {
    filter: brightness(200%);
  }
  details::before {
    color: var(--secoColor);
    position: absolute;
    margin-left: 80px;
    padding: 10px 10px;
    opacity: 0.4;
  }
  details[open]::before {
    animation: fadeMe 300ms linear forwards;
  }
  @keyframes menuAnim {
    0% {
      height: 0;
    }
    100% {
      height: 312px;
    }
  }
  @keyframes fadeMe {
    0% {
      opacity: 0.4;
    }
    100% {
      opacity: 0;
    }
  }