Magento has an option to customise email templates. You can add your order ,invoice or shipment template with your custom design and css. This option is present in Magento 2 when you go to Marketing->(Under Communications) Email Template. Just like in M1 just Add your order email template as you like but problem now is Order Item is not showing up when you use {{layout handle=”sales_email_order_items” order=$order}} which you can also get if you use the insert variable option. The workaround for this is go to your database where magento 2 is linked with. Go to table “email_template” then set “is_legacy=1” for the email template which is not showing order item list in the email. For example email template id 6 you have created and order item list is not showing in the email then go to “email_template” table go to template_id 6 and just set is_legacy=1 and after this your order item list will be shown.
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