body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
    text-align: center;
}

.keynote-speakers {
    padding: 20px;
}

.tabs {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
}

.tab-button {
    background-color: #007BFF;
    color: white;
    border: none;
    padding: 10px 20px;
    cursor: pointer;
    font-size: 18px;
    margin: 0 5px;
    border-radius: 5px;
}

.tab-button.active {
    background-color: #0056b3;
}

.marquee {
    overflow: hidden;
    white-space: nowrap;
    width: 100%;
    display: flex;
    justify-content: center;
}

.marquee-content {
    display: flex;
    animation: scroll 40s linear infinite;
    gap: 15px;
}

.marquee-content img {
    width: 350px;
    height: 300px;
    border-radius: 10px;
    transition: transform 0.3s;
}

.marquee-content img:hover {
    transform: scale(1.1);
}

@keyframes scroll {
    from {
        transform: translateX(100%);
    }
    to {
        transform: translateX(-100%);
    }
}