add style loading icon

wp-content/themes/ahoadonviet/css/hdv-huypq.css

@@ -332,3 +332,9 @@ p.title-item-sidebar {
     background: #56BC86;
     border-color: #56BC86;
 }
+
+.woocommerce form[name="checkout"] .loading{
+    position: absolute;
+    left: calc(50% - 100px);
+    top: 0;
+}

wp-content/themes/ahoadonviet/woocommerce/checkout/form-checkout.php

@@ -69,7 +69,7 @@ if ( ! $checkout->is_registration_enabled() && $checkout->is_registration_requir
 		var loading = $('.loading');
 		var noti = $('.notify-mst');
 		$( 'i#search-taxcode' ).on( 'click', function() {
-			$(this).append(loading);
+			$('#mst_checkout_field').append(loading);
 			$('#mst_checkout_field_field').append(noti);
 			var taxcode = $('input#mst_checkout_field').val();
 			$('input#mst_checkout_field').val(taxcode.trim());
@@ -77,12 +77,12 @@ if ( ! $checkout->is_registration_enabled() && $checkout->is_registration_requir
 			if( taxcode.length < 1 ){
 				noti.text('Mã số thuế không hợp lệ');
 				noti.css('display','block');
-				$('.loading').css('display','none');
+				loading.css('display','none');
 			}else{
 				if (!$.isNumeric(taxcode)) {
 					noti.text('Mã số thuế không hợp lệ');
 					noti.css('display','block');
-					$('.loading').css('display','none');
+					loading.css('display','none');
 				}else{
 					$.ajax({
 					url: "<?=get_site_url()?>/wp-json/ahoadon/v1/taxcode/"+taxcode,
@@ -92,10 +92,12 @@ if ( ! $checkout->is_registration_enabled() && $checkout->is_registration_requir
 					dataType: "json",
 					type: 'GET',
 					beforeSend: function () {
-							$('.loading').css('display','block');
+							loading.css('display','block');
+							$('i#search-taxcode').css('display','none');
 						},
 					success: function( response ) {
-						$('.loading').css('display','none');
+						loading.css('display','none');
+						$('i#search-taxcode').css('display','block');
 						// console.log(response);
 						if (response.status == 400) {
 							noti.text(response.message);
@@ -127,7 +129,7 @@ if ( ! $checkout->is_registration_enabled() && $checkout->is_registration_requir
 					error: function (xhr, ajaxOptions, thrownError) {
 						noti.text('Mã số thuế không hợp lệ');
 						noti.css('display','block');
-						$('.loading').css('display','none');
+						loading.css('display','none');
 					}
 				});