Write HTML Email using Google Drive documents and Gmail

I have tested the below procedure to send a colored cells table. Whether all markup generated by Google Documents will be compatible with webmails out there like aol is a good question. However given the resources Google has I would say that if it looks good in Gmail chances would be that it would look good in any other mail client.

1. Create a new "Document" in Google Drive.
2. Add headers, colors, tables etc.
3. Select the content and copy it.
4. Paste it in a new gmail email and send it.