2015 (v3) - Lightbox Gallery with a single Thumbnail

2015 (v3) - Lightbox Gallery with a single Thumbnail.css

/* This hides all thumnails except the 1st one */
.case-studies .gal-yslightb li:not(:first-child) {
    display: none;
}

/* Fix the Spacing of the Thumbnail */
.case-studies .gal-yslightb .thumb {
    height: auto !important;
    line-height: 1 !important;
}