.timeline-container {
    max-width: 800px;
    margin: 50px auto;
    padding: 20px;
}

.timeline-title {
    text-align: center;
    font-size: 2.5em;
    margin-bottom: 40px;
    color: #333;
}

.timeline {
    position: relative;
    padding-left: 50px;
    border-left: 2px solid #ddd;
}

.timeline-item {
    margin-bottom: 40px;
    position: relative;
}

.timeline-item:before {
    content: '';
    position: absolute;
    left: -58px;
    top: 5px;
    width: 15px;
    height: 15px;
    border-radius: 50%;
    background-color: #ddd;
    border: 2px solid #fff;
}

.timeline-year {
    font-size: 1.2em;
    font-weight: bold;
    color: #555;
    margin-bottom: 10px;
}

.timeline-item-title {
    font-size: 1.5em;
    margin-bottom: 10px;
    color: #333;
}

.timeline-item-description {
    font-size: 1em;
    color: #666;
}