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

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

button.toggle.left::after {
  margin-left: var(--unit--horizontal);
}
button.toggle.left.close::after {
  content: "+";
}
button.toggle.left.open::after {
  content: "-";
}

button.toggle.right::before {
  margin-right: var(--unit--horizontal);
}
button.toggle.right.close::before {
  content: "+";
}
button.toggle.right.open::before {
  content: "-";
}

#tabs {
  position: relative;
  margin-top: -25svh;
  margin-bottom: 30svh;
  transition: margin-top 0.5s ease-in-out;
}

#tabs.open {
  margin-bottom: calc(3 * var(--unit--vertical));
}

.active-tab {
  max-height: 65svh;
  overflow: auto;
  margin-top: var(--unit--vertical);
  transition: max-height 0.5s ease-in-out;
}

.page-cover.open .active-tab {
  height: calc(100svh - 7.5 * var(--unit--vertical));
}

.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);
  }
}