*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}

#header {
    padding: 0;
    box-shadow: 0 1px 10px 0 rgba(0, 0, 0, 0.15);
    counter-reset: section
}

.player {
    width: 100%;
}

.video iframe {
    width: 100%;
    max-height: 540px;
    aspect-ratio: 16 / 9;
}

.video-list {
    max-height: 540px;
    overflow-y: scroll;
}

.video-list .vid {
    cursor: pointer;
    display: flex;
    align-items: center;
    height: 53px;
    padding: 8px;
}

.video-list .vid .title{
    font-size: 14px;
    margin: 0;
    line-height: 1.3;
}

h6:before{
   counter-increment: section;
   content: counter(section) ". ";
}

.main-video .video .main-title {
    margin: 0;
    font-size: 20px;
    text-align: center;
    padding: 0.6rem;
    color: white;
    font-weight: 500;
    background-color: darkblue;
}

.video-list .vid:hover {
    background-color: rgb(235, 235, 235);
}

.video-list .vid.active {
    background-color: rgb(235, 235, 235);
}

.video-list .vid iframe {
    display: none;
}