@media only screen and (min-width: 768px) {

    .middle-col .alignfull {
        margin-left: calc(50% - 50vw);
        margin-right: calc(50% - 49.6vw);
        width: auto;
        max-width: 1000%;
    }

    .middle-col .alignwide {
        margin-left: calc(25% - 25vw);
        margin-right: calc(25% - 25vw);
        width: auto;
        max-width: 1000%;
    }

    .middle-col .alignwide img,
    .middle-col .alignfull img {
        display: block;
        margin: 0 auto;
    }
     .middle-col .alignfull img {
               width: 100vw;
    }
    .middle-col .alignwide iframe,
    .middle-col .alignfull iframe {
        display: block;
        margin: 0 auto;
        width: 100% !important;
    }
}
.wp-block-image{
    margin-bottom: 15px
}
.alignleft img {
    float: left;
}
.alignright img {
    float: right;
}