.swatch-medium {
    height: 250px;
    width: auto;
}

.swatch-large {
    height: 500px;
    width: auto;
}

.swatch-medium  img {
    height: 250px;
    width: 250px;
}

.swatch-large img {
    height: 500px;
    width: 500px;
}

.spec-pattern-images {
    position: relative;
    top: 0;
    left: 0;
}

.spec-pattern-images img {
    position: absolute;
    top: 0;
    left: 0;
}