.stbw-grid{
    display:grid;
    grid-template-columns:repeat(3,minmax(0,1fr));
    width:100%;
}
.stbw-item{
    min-width:0;
}
.stbw-image-wrap{
    line-height:0;
}
.stbw-image{
    display:inline-block;
    max-width:100%;
    height:auto;
    vertical-align:middle;
    transition:opacity .2s ease;
}
.stbw-empty{
    padding:20px;
    border:1px dashed #ccc;
    text-align:center;
}