.wp-block[data-type="meta-box/block-two-images"]{
    max-width: 100%;
}
.two-images ul{
    list-style: none;
    padding-left: 0px;
    margin-bottom: 0px;
    display: grid;
    grid-template-columns: repeat(2,1fr);
}
.two-images ul li img{
    width: 100%;
    height: 100%;
    object-fit: cover;
}