因此，自我启动此网站（https://shop.cafedumonde.com/）以来，我一直遇到此问题。每当我单击“添加到购物车”按钮时，按钮都会展开，并且“字体真棒”中的向右箭头图标会出现。它从来没有做过，我尝试了各种方法使其正常工作，但无济于事。这是我正在使用的代码。首先是HTML：

<div class="wp-block-button wc-block-grid__product-add-to-cart">
    <a href="?add-to-cart=46198" aria-label="Add &ldquo;Beignet Mix&rdquo; to your cart" data-quantity="1" data-product_id="46198" data-product_sku="R2A" rel="nofollow" class="wp-block-button__link add_to_cart_button ajax_add_to_cart">Add to cart</a>
 </div>

CSS：

.wc-block-grid__product-add-to-cart a.added::after {
    color: #fff;
    content: '\f0a9';
    font-family: "Font Awesome 5 Free";
    font-style: normal;
    font-weight: normal;
    text-decoration: inherit;
}