my.css

background: linear-gradient(270deg, #1addab, #ce3e1d);
background-size: 400% 400%;
-webkit-animation: AnimationName 30s ease infinite;
-moz-animation: AnimationName 30s ease infinite;
-o-animation: AnimationName 30s ease infinite;
animation: AnimationName 30s ease infinite;
@-webkit-keyframes AnimationName {
    0%{background-position:0% 50%}
    50%{background-position:100% 50%}
    100%{background-position:0% 50%}

kloon

// check for clear-cart get param to clear the cart, append ?clear-cart to any site url to trigger this
add_action( 'init', 'woocommerce_clear_cart_url' );
function woocommerce_clear_cart_url() {
	if ( isset( $_GET['clear-cart'] ) ) {
		global $woocommerce;
		$woocommerce->cart->empty_cart();
	}
}