.purchase-quantity button > span {
    display: block;
    width: 18px;
    color: inherit;
    font: 400 18px/18px Arial, sans-serif;
    text-align: center;
}

.purchase-actions > .add:hover,
.purchase-actions > .add:focus,
.purchase-actions > .build-bundle-button:hover,
.purchase-actions > .build-bundle-button:focus {
    box-shadow: none;
}