.you_tube_video video {
    width: 100%;
}

div.content-gallery>ul {
    margin-top: 30px;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: space-between;
    display: flex;

    & li {
        width: 23%;
    }

    & figure {
        height: 30vh;
    }

    & a,
    img {
        height: 100%;
        object-fit: cover;
    }
}