.header--sticky {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    opacity: 1;
    visibility: visible;
    animation: slideDown 0.3s ease-in-out;
    z-index: 9999;
  }

  header {
    background-color: #fff;
  }

  .mnmenu.navigation {
    overflow-y: scroll;
    max-height: calc(100vh - 80px);
}

.mnmenu.navigation .nav_comment{
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 10px;
}
.mnmenu.navigation .nav_comment h4{
    margin-top: 20px;
}

@media screen and (max-width: 768px) {

  .mnmenu.navigation{
      top:39px;
      max-height: calc(100vh - 39px);
  }
  .mnmenu.navigation .nav_comment{
    display: block;
}
}