* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    width: 100%;
    height: 100%;
    background: #000;
    display: flex;
    justify-content: center;
    align-items: center;
}

.box {
    width: 90%;
    max-width: 1000px;
}

video {
    width: 100% !important;
    height: auto !important;
    display: block !important;
    object-fit: fill;
}