actuel-inactuel/assets/css/src/tabs.css

.toggle-btns {
  position: sticky;
}
button.toggle.open:not(.see-more) {
  font-weight: bold;
}

#tabs button.toggle {
  transition: margin 0.4s var(--curve-sine);
}

#tabs.minimized button.toggle.left {
  margin-left: calc(-4px - var(--width));
}
button.toggle.left::after {
  margin-left: var(--unit--horizontal);
}
button.toggle.left.close::after {
  content: "+";
}
button.toggle.left.open::after {
  content: "-";
}

#tabs.minimized button.toggle.right {
  margin-right: calc(-4px - var(--width));
}
button.toggle.right::before {
  margin-right: var(--unit--horizontal);
}
button.toggle.right.close::before {
  content: "+";
}
button.toggle.right.open::before {
  content: "-";
}

#tabs {
  width: 100%;
  z-index: 1;

  position: sticky;
  top: calc(var(--unit--vertical) * 8);
  transform: translateY(calc(0rem - var(--unit--vertical-relative) * 4));
}

.active-tab {
  position: absolute;
  max-height: calc(var(--unit--vertical-relative) * 17);
  overflow: auto;
  transition: max-height 0.5s ease-in-out;
  padding: var(--unit--vertical) 0;
}
/* ================= SCROLLBAR ================= */
/* Works on Firefox */

.active-tab {
  scrollbar-width: thin;
  scrollbar-color: #fff transparent;
}

/* Works on Chrome, Edge, and Safari */

.active-tab::-webkit-scrollbar {
  width: 3px;
  height: auto;
}

.active-tab::-webkit-scrollbar-track {
  background: transparent;
}

.active-tab::-webkit-scrollbar-thumb {
  background-color: #fff;
  border-radius: 1px;
  border: none;
}

.texts__year.short .year__edito {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 5;
  overflow: hidden;
}

.texts__year .see-more {
  width: 100%;
  margin-top: calc(var(--unit--vertical) / 2);
}

@media screen and (min-width: 640px) {
  #home #tabs {
    margin-top: calc(0px - (10 * var(--unit--vertical)));
  }
  button.toggle.left::after {
    margin-left: calc(var(--unit--horizontal) / 2);
  }
  button.toggle.right::before {
    margin-right: calc(var(--unit--horizontal) / 2);
  }
}