spinner {
    --spinner-stroke-color: #eee;
    width: 15%;
    height: 15%;
}

h1.test {
    text-align: center;
    margin: 50px auto 10px auto;
}

h2.test {
    text-align: center;
    margin: 0 auto;
    font-size: 16px;
    font-weight: 500;
    color: #555;
}

div.video {
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 10%;
    overflow: hidden;
}

    div.video video {
        flex: 1 1 auto;
        object-fit: cover;
        background-color: #fff;
    }

ul.chart {
    display: flex;
    flex-flow: row wrap;
    margin: 60px 30px;
    list-style: none;
    max-width: 1400px;
}

    ul.chart li {
        flex: 1 1 600px;
        width: 650px;
        height: 400px;
        display: flex;
        align-items: center;
        justify-content: center;
        margin: 20px;
        border: 1px solid #eee;
        border-radius: 8px;
    }