.timeline-track {
  overflow-x: scroll;
  overflow-y: visible;
}
.ano-box {
  width: 270px;
  flex-shrink: 0;
}
.ano-box::before {
  content: '';
  display: block;
  position: absolute;
  top: 0;
  left: 0;
  width: 10px;
  height: 10px;
  background-color: var(--vermelho);
  z-index: 999;
  border-radius: 10px;
}
.ano-box::after {
  content: '';
  position: absolute;
  top: 4px;
  left: 0;
  width: calc(100% + 60px);
  height: 1px;
  background: var(--vermelho);
  z-index: 1;
}
.ano-box:last-child::after {
  width: 100%;
}
.timeline-btns {
  display: flex;
  gap: 8px;
  align-self: center;
}
.timeline-btn {
  background: var(--vermelho);
  color: #fff;
  border: none;
  border-radius: 50%;
  width: 36px;
  height: 36px;
  cursor: pointer;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  line-height: 0.5;
}
.timeline-btn:hover {
  opacity: 0.8;
}