:root{
    --widget-size: 200px;
}

body, html{
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: rgba(0, 0, 0, 0);
}

body{
    display: flex;
    text-align: center;
    align-items: center;
    justify-content: center;
}

.error{
    height: 100%;
    font-size: 70px;
    font-weight: bold;
}

img, video{
    width: var(--widget-size);
    height: var(--widget-size);
}