.video-container {
    display: flex;
}

.main-video {
    width: 66%;
}

.video-list {
    width: 33%;
}

.video-list ul {
    list-style: none;
    padding: 0;
}

.video-list li {
    margin-bottom: 20px;
}

.video-thumbnail {
    cursor: pointer;
    width: 100%;
    height: auto;
}