.icon-social.icon-social-theme.icon-instagram {
    background-image: url(https://cdn6.bigcommerce.com/s-q5ipr57930/product_images/uploaded_images/spright.png?t=1479430943&_ga=1.123575819.1256482275.1469027556);
}


.icon-instagram {
    background-position-y: -360px;
    background-position-x: -64px;
}
.icon-instagram:hover {
    background-position-y: -360px;
    background-position-x: -129px;
}