/* clear fix */
.grid:after {
    content: '';
    display: block;
    clear: both;
}

/* ---- .grid-item ---- */

.grid-sizer,
.grid-item {
    width: 33.333%;
}

.grid-item {
    float: left;
    padding: 5px;
}

.grid-item img {
    display: block;
    max-width: 100%;
}

.gallery-caption {
    position: absolute;
    bottom: 0;
    left:0;
    padding: 5px;
    background-color: #000000b3;
    color: #bababa;
}