Custom icons&text under add to cart button

add_action( 'woocommerce_after_add_to_cart_button', 'add_content_after_add2cart_button' );

function add_content_after_add2cart_button() {

    echo '<div class="after_add2cart_content"> Add HTML code for 4 columns that contain icons + titles (then style with CSS)</div>';

}