a.quantity-selector {
    padding: 12px 12px;
    vertical-align: top;
}

a.quantity-selector:not(.active) {
    background-color: #F3F3F3;
    color: #3E3E3E;
    box-shadow: none;
}

a.quantity-selector:not(.active):hover {
    background-color: #F3F3F3;
    box-shadow: inset 0 0 200px rgba(0, 0, 0, .1);
}