.timeline {
    --deco-offset-top: 280px;
    --swiper-button-size: 3.5rem;
}
.timeline .year_badge {
    width: 100%;
    display: block;
    background-color: #36353f;
    padding: .5rem 1rem;
    color: #fff;
    font-size: 2rem;
    font-weight: bold;
}
.timeline .card {
    padding: 0;
    height: 100%;
    border-radius: 0;
    border: none;
    background-color: #eee;
}
.timeline .card-body {
    height: 100%;
}
.timeline .swiper-slide {
    height: auto;
}
.timeline .hr-line {
    width: 100%;
    height: 4px;
    background-color: #36353f;
    top: var(--deco-offset-top);
    position: absolute;
}
.timeline .swiper-button-next,
.timeline .swiper-button-prev {
    top: calc(var(--deco-offset-top) - (var(--swiper-button-size) / 2));
    color: #fff;
    background-color: #36353f;
    height: var(--swiper-button-size);
    width: var(--swiper-button-size);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    margin-top: unset;
}
.timeline .swiper-button-next:after,
.timeline .swiper-button-prev:after{
    font-size: 1.5rem;
}