I'm using the version 3.4.7 of WooCommerce and configuring the e-mails, I stare with a strange thing: the templates didn't appear the css. I experienced this in all of my sites, this is a test site that is installed WordPress and WooCommerce and nothing more.

Here is my config:

[![Image with my config][1]][1]

The current result is:

[![current result of my template][2]][2]

I expect something like this:

[![enter image description here][3]][3]

I don't know what I'm doing wrong. Thanks for help.

  [1]: https://i.stack.imgur.com/oJbck.png
  [2]: https://i.stack.imgur.com/15iwY.png
  [3]: https://i.stack.imgur.com/QdpKP.png