.live-inventory-v2-add-to-cart-wrapper {
  width: calc(100% - 45px);
  max-width: none;
}

.live-inventory-v2-add-to-cart-wrapper button.btn-primary {
  width: 100% !important;
}

.ex-product .softgraybackground .live-inventory-v2-add-to-cart-wrapper {
  width: 100% !important;
}