Hi designfrenzy.nl,

Thanks for reaching to us.

Please remove your code and add the following Custom CSS code to Theme Settings > Custom CSS > Global Custom CSS:

.wd-product.wd-hover-fw-button div.wd-add-btn>a:hover {
	background-color: #333;
}

.wd-add-btn-replace a.add-to-cart-loop:hover:before,
.wd-add-btn-replace a.add-to-cart-loop:hover span{
	transform: none;
}

.wd-add-btn-replace a.add-to-cart-loop:before{
	font-size: 0;
}

Regards,