.umb-dashboard__content .mediahuvr {
    position: relative;
    padding-bottom: 70px;
    overflow:hidden;
}

.mediahuvr .umb-media-grid__item {
    max-height: 150px;
}

.mediahuvr .umb-media-grid__item-overlay {
    opacity:0;
}

    .mediahuvr .umb-media-grid__item-overlay:hover {
        opacity: 1;
    }

.mediahuvr .umb-tooltip {
    position: absolute !important;
    display:block;
    top: calc(100% - 10px);
    left: 0;
    padding:15px 15px 5px 15px;
    line-height:14.5px;
    min-width:120px;
}