Need 1 column to 3 colune in ipad

@media only screen and (max-width: 768px) {
    div#BlogMasonryContainer {
        columns: 3;
        column-gap: 10px;
        height: auto!important;
        display: block!important;
        padding: 0px;
    }
    div#BlogMasonryContainer {
        height: auto!important;
    }
   .blog-masonry .masonry-ready .entry.is-loaded {
        position: relative!important;
        transform: none!important;
        width: 100%!important;
        display: block;
        padding: 1.5px!important;
        box-sizing: border-box;
    }

    .blog-masonry .masonry-ready .entry.is-loaded img {
        height: 100%!important;
      	width: 100%!important;
        object-fit: contain !important;
    }
}