.videoheader {
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    margin-top: 0;
    overflow: hidden;
    display: flex;
    align-items: center;
    margin-top: 6vw;
}

.videoheader video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}