fix tabs

Author: cephalin

articles/app-service/app-service-web-tutorial-custom-domain.md

@@ -89,29 +89,7 @@ Create two records according to the following table:
 
 # [Subdomain (e.g. www.contoso.com)](#tab/subdomain)
 
-### [With an A record](#tab/subdomain/a)
-
-Create two records according to the following table:
-
-|Record type|Host|Value|Comments|
-|--- |--- |--- |--- |
-|A|\<subdomain\> (for example, www)|IP address shown in the **Add custom domain** dialog.| The domain mapping itself. |
-|TXT|asuid.\<subdomain\> (for example, asuid.www)|The domain verification ID shown in the **Add custom domain** dialog.| App Service accesses the `asuid.<subdomain>` TXT record to verify your ownership of the custom domain. |
-
-![Screenshot that shows a DNS records subdomain page.](./media/app-service-web-tutorial-custom-domain/a-record-subdomain.png)
-
-### [With a CNAME record](#tab/subdomain/cname)
-
-Create two records according to the following table:
-
-| Record type | Host | Value | Comments |
-| - | - | - |
-| CNAME | `<subdomain>` (for example, `www`) | `<app-name>.azurewebsites.net` | The domain mapping itself. |
-| TXT | `asuid.<subdomain>` (for example, `asuid.www`) | The domain verification ID shown in the **Add custom domain** dialog. | App Service accesses the `asuid.<subdomain>` TXT record to verify your ownership of the custom domain. |
-
-![Screenshot that shows the portal navigation to an Azure app.](./media/app-service-web-tutorial-custom-domain/cname-record.png)
-
------
+[!INCLUDE [dns-record-creation](includes/tutorial-secure-domain-certificate/dns-record-creation.md)]
 
 # [Wildcard (CNAME)](#tab/wildcard)
 

articles/app-service/includes/tutorial-secure-domain-certificate/dns-record-creation.md

@@ -0,0 +1,31 @@
+---
+author: cephalin
+ms.author: cephalin
+ms.topic: include
+ms.date: 01/30/2023
+---
+
+### [With an A record](#tab/subdomain/a)
+
+Create two records according to the following table:
+
+|Record type|Host|Value|Comments|
+|--- |--- |--- |--- |
+|A|\<subdomain\> (for example, www)|IP address shown in the **Add custom domain** dialog.| The domain mapping itself. |
+|TXT|asuid.\<subdomain\> (for example, asuid.www)|The domain verification ID shown in the **Add custom domain** dialog.| App Service accesses the `asuid.<subdomain>` TXT record to verify your ownership of the custom domain. |
+
+![Screenshot that shows a DNS records subdomain page.](./media/app-service-web-tutorial-custom-domain/a-record-subdomain.png)
+
+### [With a CNAME record](#tab/subdomain/cname)
+
+Create two records according to the following table:
+
+| Record type | Host | Value | Comments |
+| - | - | - |
+| CNAME | `<subdomain>` (for example, `www`) | `<app-name>.azurewebsites.net` | The domain mapping itself. |
+| TXT | `asuid.<subdomain>` (for example, `asuid.www`) | The domain verification ID shown in the **Add custom domain** dialog. | App Service accesses the `asuid.<subdomain>` TXT record to verify your ownership of the custom domain. |
+
+![Screenshot that shows the portal navigation to an Azure app.](./media/app-service-web-tutorial-custom-domain/cname-record.png)
+
+-----
+