#gallery{
    display: flex;
    position: relative;
    flex-wrap: wrap;
}

.gallery-item{
    min-width: 16vw;
    height: 16vw;
    flex: 1;
    border: 2px solid black;
    border-top: none;
    border-bottom: 4px solid black;
    box-sizing: border-box;
    object-fit: cover;
    object-position: 50% 50%;
    cursor: pointer;
}

.gallery-item:hover{
    opacity: 0.8;
}

#image-viewer{
    background-color: rgba(0, 0, 0, 0.8);
    display: none;
}

#image-viewer-image,#sg-vid{
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    max-width: 100%;
    max-height: 100%;
    object-fit: scale-down;
    object-position: 50% 50%;
}

#sg-vid{
    width:75vw;
    height: 42.3vw;
}

#image-viewer-close{
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 40px;
    cursor: pointer;
}

@media(max-width:720px){

    .gallery-item{
        min-width: 33.33vw;
        height: 33.33vw;
    }

}