At work we have a section where people can set up emails that go out to their own customers (we have a reseller scheme). There are placeholders like [NAME] and [BASKET] that the customers can put in their email templates which we then replace with the actual information when we send the emails out.
Recently I’ve been asked to add some IDs and classes to the HTML elements we generate for the placeholders so that the whole section can be styled by our resellers.
I quickly added a bunch of classes and then began testing with a <style> tag in in my email. I spent quite a while wondering why it wasn’t working correctly before the DOM Inspector showed me that Google strips the IDs of elements. I then went on to read that they also remove all <style> content. You also can’t use a <link> tag to include a stylesheet (which is a good thing).
The only way to style email for Gmail is apparently to use the style attribute for each element. This is fine if you are fully writing the emails yourself, but our resellers never even see the actual tags, they just put in a placeholder. That leaves them no way of adding a style attribute to a section, which means we can’t let our resellers fully style their emails. Ridiculous.