body {
    background-color: #f8f9fa;
    font-family: Arial, sans-serif;
}

.timeline {
    position: relative;
    height: 100px;
    background-color: #f9f9f9;
    border: 1px solid #ddd;
    overflow-x: auto;
}

.timeline .event {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    height: 20px;
    border-radius: 10px;
    background-color: #007bff;
    text-align: center;
    cursor: pointer;
}

.timeline .event:hover {
    background-color: #0056b3;
}

.timeline .event::after {
    content: attr(data-name);
    position: absolute;
    top: -30px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 5px;
    border-radius: 5px;
    white-space: nowrap;
    display: none;
}

.timeline .event:hover::after {
    display: block;
}