.timeline {
    position: relative;
    padding: 2rem 0;
}

.timeline::before {
    content: '';
    position: absolute;
    width: 4px;
    background-color: #dee2e6;
    top: 0;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    width: 50%;
    padding: 1rem 2rem;
    box-sizing: border-box;
}

.timeline-item::before {
    content: '';
    position: absolute;
    width: 0;
    height: 0;
    border-style: solid;
}

.timeline-item.left {
    left: 0;
    text-align: right;
}

.timeline-item.left::before {
    top: 15px;
    right: -8px;
    border-width: 8px 0 8px 8px;
    border-color: transparent transparent transparent #ffffff;
}

.timeline-item.right {
    left: 50%;
    text-align: left;
}

.timeline-item.right::before {
    top: 15px;
    left: -8px;
    border-width: 8px 8px 8px 0;
    border-color: transparent #ffffff transparent transparent;
}

.timeline-item .card {
    background-color: #ffffff;
}