Reply To: Add to cart button design

hello, the code you gave me does not work. this is the code I have on the website for the design of the button

.product-grid-item .wd-add-btn-replace .add-to-cart-loop:before {  
	 transform: translateY(0) translateZ(0);
	color: white ; 
	background-color: black;
} 
.product-grid-item .wd-add-btn-replace .add-to-cart-loop span { 
	transform: translateY(-100%) translateZ(0); 
	}