#modal_gallery {
    position: fixed;
    left: 0;
    top: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    background-color: #fff;
    z-index: 9;
}
#gallery_close{
    right: 20px;
    top: 70px
}
#gallery_close:before,
#gallery_close:after {
    z-index: 9999;
    content: '';
    position: absolute;
    width: 2px;
    height: 2.5rem;
    background: #111;
    display: block;
    transform: rotate(45deg);
    right: 18px;
    top: 8px;
    cursor: pointer;
}

#gallery_close:before {
    transform: rotate(-45deg);
}

#modal_gallery div {
    height: 100%;
    width: 100%;
    z-index: 999;
    background-repeat: no-repeat;
    background-size: 100%;
    background-position-y: 50%;
    margin: 3rem auto;
    transition: 1s
}
html .wp-block-gallery{
    display: flex;
    flex-wrap: wrap;
}

#next.nav-button{
    right: 20px;
}
#prev.nav-button{
    left: 20px;
}
.nav-button {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background-color: rgb(255 255 255 / 70%);
    border: none;
    color: #111;
    padding: 10px;
    cursor: pointer;
    z-index: 1;
    user-select: none;
    box-shadow: 1px 1px #1116;
    border-radius: 5px;
    height: 40px;
    width: 40px;
}