.hero-about-video {
    position: relative;
    height: 82vh;
    margin: 30px 30px 60px 30px; /* top right bottom left*/

    overflow: hidden;
    border-radius: 5px;

    box-shadow: 0 25px 60px rgba(0,0,0,0.08);
}

.slider-about-video {
    position: absolute;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: opacity 1s ease;
}

.slide.active-about-video {
    opacity: 1;
    z-index: 0;
}

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