.single-product .woocommerce-notices-wrapper {
  position: fixed;
  bottom: 0;
  z-index: 1000;
  width: 100%;
}

.single-product .woocommerce-notices-wrapper .woocommerce-error{
  margin: 0;
}

.single-product .woocommerce-notices-wrapper .fas.fa-times{
  position: absolute;
  right: 10px;
  top: 10px;
  cursor: pointer;
}