html {
  scroll-behavior: smooth;
}
body {
    margin: 0;
    font-family: 'Rubik', Arial, sans-serif !important;
    font-size: 14px;
    line-height: 1;
    color: #3a3a3a;
    background-color: #fff;
    height: 100%;
}

    header {
        position: relative;
        width: 100%;
        height: 20vh;
        background-color: #004884;
        text-align: center;
    }

    header img {
        height: 85%;
        padding-top: 10px;
    }

    .sidebar {
        width: 20%;
        height: 80vh;
        overflow: auto;
        float: left;
        padding: 20px;
        box-sizing: border-box;
    }

    .video-item {
        padding: 10px;
        border-bottom: 1px solid #ccc;
        cursor: pointer;
    }

    .video-item:hover {
        background: #e7f0ff;
    }

    .video-item.active {
        background: #cfe1ff;
        font-weight: bold;
    }

    .player {
        position: relative;
        overflow: hidden;
        padding: 20px 0;
        width: 80%;
        height: auto;
        text-align: center;
        display: flex;
        justify-content: center;
        align-items: center;
        flex-direction: row;
        flex-wrap: wrap;
        align-content: stretch;
        float: left;
        border-right: 1px solid #004884;
        box-sizing: border-box;
    }

    video {
        width: 100%;
        max-height: 80vh;
        background: #fff;
        margin: 0 15px;
    }