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To get the best results when you work with CSS in HTML email, keep your code simple and inline your CSS. Mailchimp's Automatic CSS Inliner tool converts styles from your pasted code to inline and saves you from coding it by hand.
In this article, you'll learn how to turn on the Automatic CSS Inliner in a Code Your Own template and which selectors are supported.
Turn on the Inliner
- In the Content section of the Campaign Builder, click Design Email.
- On the Template step, click the Code Your Own tab and select Paste in code.
- On the Design step, paste in your HTML code.
- Click the Settings tab.
- Check the box next to Automatic CSS Inliner.
Selectors Supported by the CSS Inliner
The Automatic CSS Inliner allows you to include sophisticated CSS styling in your HTML email, including attributes, pseudo-classes, descendants, and more. These are the selectors supported by the Inliner.
- has attribute
- attribute value equals
- attribute value is one of
- attribute value contains
- attribute hyphen value
- attribute value begins with
- attribute value ends with
- pseudo-classes first-child
After you've turned on the Inliner and the rest of your code is ready to go, continue setting up your campaign.
- When you enable the Inliner option, you won't see an immediate change to your code. After your message is sent to the queue, we'll convert the styles before we deliver it to your audience. Once you enable the Inliner, however, you can preview the campaign in a side-by-side viewer. There, you can verify our changes won't do something you don't want before you send.
- The Inliner doesn't "fix" CSS support issues, only those that are safe to use in bulk email to begin with. For example, you still shouldn't use DIV tags to position your content.