Implementing advanced CSS in email marketing requires a thorough understanding of email client limitations and best practices. Here are some steps to get started:
1. Know Your Audience: Understand the most commonly used email clients and devices among your audience. This will help you prioritize which advanced CSS techniques to implement.
2. Use Inline CSS: While it may seem cumbersome, using inline CSS ensures better compatibility across different email clients.
3. Test Extensively: Always test your emails across various email clients and devices to ensure that your advanced CSS works as intended. Tools like Litmus and Email on Acid can be invaluable for this purpose.
4. Fallbacks and Graceful Degradation: Ensure that your emails still function and look acceptable even if advanced CSS features are not supported by certain email clients. This involves using fallback styles and techniques.